Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Build-up of a new liquid hydrogen (LH2) storage tank is in progress on Oct. 1, 2019, at Launch Complex 39B at NASA's Kennedy Space Center in Florida. The new tank will hold 1.25 million gallons of usable LH2 to support future launches from the pad, including Artemis missions to the Moon and on to Mars.

Seen here is a newly constructed liquid hydrogen (LH2) storage tank at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 1, 2021. With construction now complete, teams will focus on painting the tank next. The storage tank, capable of holding 1.25 million gallons of LH2, will be used to support future Artemis missions to the Moon and, eventually, Mars. Through Artemis, NASA will land the first woman and first person of color on the Moon, paving the way for a long-term presence in lunar orbit.

Seen here is a newly constructed liquid hydrogen (LH2) storage tank at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 1, 2021. With construction now complete, teams will focus on painting the tank next. The storage tank, capable of holding 1.25 million gallons of LH2, will be used to support future Artemis missions to the Moon and, eventually, Mars. Through Artemis, NASA will land the first woman and first person of color on the Moon, paving the way for a long-term presence in lunar orbit.

Seen here is a newly constructed liquid hydrogen (LH2) storage tank at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 1, 2021. With construction now complete, teams will focus on painting the tank next. The storage tank, capable of holding 1.25 million gallons of LH2, will be used to support future Artemis missions to the Moon and, eventually, Mars. Through Artemis, NASA will land the first woman and first person of color on the Moon, paving the way for a long-term presence in lunar orbit.

Seen here is a newly constructed liquid hydrogen (LH2) storage tank at Launch Pad 39B at NASA’s Kennedy Space Center in Florida on Oct. 1, 2021. With construction now complete, teams will focus on painting the tank next. The storage tank, capable of holding 1.25 million gallons of LH2, will be used to support future Artemis missions to the Moon and, eventually, Mars. Through Artemis, NASA will land the first woman and first person of color on the Moon, paving the way for a long-term presence in lunar orbit.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. The tank will be lifted and rotated for delivery to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. The tank will be lifted and rotated for delivery to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. The tank will be lifted and rotated for delivery to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. A crane will be used to lift and rotate the tank for delivery to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. A crane will be used to lift and rotate the tank for delivery to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. A crane is used to lift the tank and rotate it before it is delivered to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. The tank has been lifted and rotated by crane and lowered back onto the flatbed truck for transport to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. A crane is used to lift and rotate the tank before delivery to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. Construction workers check lines as a crane is attached to the tank to lift and rotate it before it is delivered to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. A crane has been attached to the tank to lift and rotate it before it is delivered to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

A new liquid hydrogen separator tank arrives at NASA's Kennedy Space Center in Florida. A crane is used to lift and rotate the tank before it is delivered to Launch Pad 39B. The new separator/storage tank will be added to the pad's existing hydrogen vent system to assure gaseous hydrogen is delivered downstream to the flare stack. The 60,000 gallon tank was built by INOXCVA, in Baytown, Texas, a subcontractor of Precision Mechanical Inc. in Cocoa Florida. The new tank will support all future launches from the pad.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon.

CAPE CANAVERAL, Fla. -- In the Launch Complex 39 area at NASA's Kennedy Space Center in Florida is a liquid hydrogen, or LH2, storage tank. This large ball-shaped, vacuum-jacketed tank is used to store cryogenic propellants for the space shuttle's orange external fuel tank. The LH2 tank is located at the northeast corner of Launch Pad 39A and stores 850,000 gallons of LH2 at a temperature of minus 423 degrees F. The shuttle's external tank is loaded with about 500,000 gallons of LH2 and liquid oxygen, or LOX, about six hours prior to launch in a process known as 'tanking.' Photo credit: NASA_Frankie Martin

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. The engine section is still being outfitted, so for this test crews attached an engine section aft simulator during proof testing on January 27, 2022. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. The engine section is still being outfitted, so for this test crews attached an engine section aft simulator during proof testing on January 27, 2022. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. The engine section is still being outfitted, so for this test crews attached an engine section aft simulator during proof testing on January 27, 2022. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the four RS-25 engines. The engine section is still being outfitted, so for this test crews attached an engine section aft simulator during proof testing on January 27, 2022. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

The liquid hydrogen tank that will be part of the Space Launch System rocket’s core stage is being prepared for the Artemis III mission at NASA’s Michoud Assembly Facility in New Orleans. Eventually, the tank will be connected to the engine section that will house the RS-25 engines. The engine section is still being outfitted, so for this test crews attached an engine section aft simulator during proof testing on January 27, 2022. Once the aft simulator is attached, the LH2 tank undergoes non-destructive evaluation, which will test weld strength and ensure the tank is structurally sound. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis III mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

New Orleans, LA - NASA's Space Launch System Liquid Hydrogen(LH2) Stactic Test Article(STA) is lifted into Cell A at the Michoud Assembly Facillty. The tank will be brought to Marshall Space Flight Center for testing.

CAPE CANAVERAL, Fla. – At Launch Pad 39B at NASA’s Kennedy Space Center in Florida, the liquid oxygen, or LOX, and liquid hydrogen, or LH2, tanks that supported space shuttle launches for 30 years have been sandblasted, repaired and repainted. The two tanks, designed to store super-cooled LOX and LH2, were refurbished to prepare them to support the launch of NASA’s Space Launch System and other launch vehicles. The Ground Systems Development and Operations, or GSDO, Program office at Kennedy is leading the center’s transformation to safely handle a variety of rockets and spacecraft. For more information about GSDO, visit: http:__go.nasa.gov_groundsystems. Photo credit: NASA_Kim Shiflett

CAPE CANAVERAL, Fla. – At Launch Pad 39B at NASA’s Kennedy Space Center in Florida, the liquid oxygen, or LOX, and liquid hydrogen, or LH2, tanks that supported space shuttle launches for 30 years have been sandblasted, repaired and repainted. The two tanks, designed to store super-cooled LOX and LH2, were refurbished to prepare them to support the launch of NASA’s Space Launch System and other launch vehicles. The Ground Systems Development and Operations, or GSDO, Program office at Kennedy is leading the center’s transformation to safely handle a variety of rockets and spacecraft. For more information about GSDO, visit: http:__go.nasa.gov_groundsystems. Photo credit: NASA_Kim Shiflett

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

S122-E-005032 (7 Feb. 2008) --- Backdropped against the blackness of space, the STS-122 external fuel tank (ET) begins its relative separation from the Space Shuttle Atlantis. An STS-122 crewmember recorded the scene with a digital still camera. The fan-shaped bright area is the result of ET venting after orbiter separation. What happens in this nominal occurence is that the residual cryogenics in the tank heat up to some extent and the pressure increases, popping the relief valve. The residual LOX and LH2 spray out of the tank and are quite noticeable with the light reflection.

NASA’s Michoud Assembly move crews lift the liquid hydrogen tank for its Artemis III mission out of a production cell and move it into the final assembly manufacturing area on Oct. 10, 2025. Teams with SLS (Space Launch System) prime contractor, Boeing, recently mated the tank to the LH2 Transport Adapter Assembly, which will allow the stage to be securely transported by barge to NASA’s Kennedy Space Center once it’s mated to the forward end of the core stage. The LH2 Transport Adapter Assembly serves as a temporary place holder for the engine section, which was previously shipped from Michoud to NASA’s Kennedy Space Center for further integration. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

NASA’s Michoud Assembly move crews lift the liquid hydrogen tank for its Artemis III mission out of a production cell and move it into the final assembly manufacturing area on Oct. 10, 2025. Teams with SLS (Space Launch System) prime contractor, Boeing, recently mated the tank to the LH2 Transport Adapter Assembly, which will allow the stage to be securely transported by barge to NASA’s Kennedy Space Center once it’s mated to the forward end of the core stage. The LH2 Transport Adapter Assembly serves as a temporary place holder for the engine section, which was previously shipped from Michoud to NASA’s Kennedy Space Center for further integration. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

NASA’s Michoud Assembly move crews lift the liquid hydrogen tank for its Artemis III mission out of a production cell and move it into the final assembly manufacturing area on Oct. 10, 2025. Teams with SLS (Space Launch System) prime contractor, Boeing, recently mated the tank to the LH2 Transport Adapter Assembly, which will allow the stage to be securely transported by barge to NASA’s Kennedy Space Center once it’s mated to the forward end of the core stage. The LH2 Transport Adapter Assembly serves as a temporary place holder for the engine section, which was previously shipped from Michoud to NASA’s Kennedy Space Center for further integration. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

NASA’s Michoud Assembly move crews lift the liquid hydrogen tank for its Artemis III mission out of a production cell and move it into the final assembly manufacturing area on Oct. 10, 2025. Teams with SLS (Space Launch System) prime contractor, Boeing, recently mated the tank to the LH2 Transport Adapter Assembly, which will allow the stage to be securely transported by barge to NASA’s Kennedy Space Center once it’s mated to the forward end of the core stage. The LH2 Transport Adapter Assembly serves as a temporary place holder for the engine section, which was previously shipped from Michoud to NASA’s Kennedy Space Center for further integration. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

KENNEDY SPACE CENTER, FLA. -- A small ruler shows the relative size of the bent LH2 recirculation line in Space Shuttle Discovery's engine compartment. Underneath the line is material draped to protect other components. The 12-inch-long dent was discovered during routine aft compartment inspections Tuesday, Dec. 7. The LH2 line recirculates hydrogen from the Shuttle main engines back to the external tank during prelaunch engine conditioning. The line is being replaced and managers expect the replacement work to take about 3 days, followed by system retests and final aft compartment close-outs. Preliminary assessments reflect a launch date of Space Shuttle Discovery on mission STS-103 no earlier than Dec. 16. STS-103 is the third servicing mission for the Hubble Space Telescope

James Stickley (left) and Derry Dilby (right), who are with United Space Alliance, check over a spare four-inch diameter LH2 recirculation line that will be used to replace a damaged LH2 line in the orbiter Discovery. The line recirculates hydrogen from the Shuttle main engines back to the external tank during prelaunch engine conditioning. Workers noted a dent in the line during routine aft compartment inspections Tuesday, Dec. 7. The dent measures 12 inches long and about ½-inch deep. Managers expect the replacement work to take about 3 days, followed by system retests and final aft compartment close-outs. Preliminary assessments reflect a launch date of Space Shuttle Discovery on mission STS-103 no earlier than Dec. 16. STS-103 is the third servicing mission for the Hubble Space Telescope

KENNEDY SPACE CENTER, FLA. -- Green dye penetrant helps pinpoint the dent discovered in this LH2 recirculation line in Space Shuttle Discovery's engine compartment. The 12-inch-long dent was discovered during routine aft compartment inspections Tuesday, Dec. 7. The LH2 line recirculates hydrogen from the Shuttle main engines back to the external tank during prelaunch engine conditioning. The line is being replaced and managers expect the replacement work to take about 3 days, followed by system retests and final aft compartment close-outs. Preliminary assessments reflect a launch date of Space Shuttle Discovery on mission STS-103 no earlier than Dec. 16. STS-103 is the third servicing mission for the Hubble Space Telescope

A spare four-inch diameter LH2 recirculation line (shown in photo) will be used to replace a damaged LH2 line in the orbiter Discovery. The line recirculates hydrogen from the Shuttle main engines back to the external tank during prelaunch engine conditioning. Workers noted a dent in the line during routine aft compartment inspections Tuesday, Dec. 7. The dent measures 12 inches long and about ½-inch deep. Managers expect the replacement work to take about 3 days, followed by system retests and final aft compartment close-outs. Preliminary assessments reflect a launch date of Space Shuttle Discovery on mission STS-103 no earlier than Dec. 16. STS-103 is the third servicing mission for the Hubble Space Telescope

Gary Hamilton (left) and James Stickley, both with United Space Alliance, check out a spare four-inch diameter LH2 recirculation line that will be used to replace a damaged LH2 line in the orbiter Discovery. The line recirculates hydrogen from the Shuttle main engines back to the external tank during prelaunch engine conditioning. Workers noted a dent in the line during routine aft compartment inspections Tuesday, Dec. 7. The dent measures 12 inches long and about ½-inch deep. Managers expect the replacement work to take about 3 days, followed by system retests and final aft compartment close-outs. Preliminary assessments reflect a launch date of Space Shuttle Discovery on mission STS-103 no earlier than Dec. 16. STS-103 is the third servicing mission for the Hubble Space Telescope

CAPE CANAVERAL, Fla. – Near the Hypergolic Maintenance Facility at NASA’s Kennedy Space Center in Florida, a groundbreaking ceremony was held to mark the location of the Ground Operations Demonstration Unit Liquid Hydrogen, or GODU LH2, test site. From left, are Johnny Nguyen, Fluids Test and Technology Development branch chief Emily Watkins, engineering intern Jeff Walls, Engineering Services Contract, or ESC, Cryogenics Test Lab engineer Kelly Currin, systems engineer Stephen Huff and Rudy Werlink partially hidden, cryogenics engineers Angela Krenn, systems engineer Doug Hammond, command and control engineer in the electrical division William Notardonato, GODU LH2 project manager and Kevin Jumper, ESC Cryogenics Test Lab manager. The GODU LH2 test site is one of the projects in NASA’s Advanced Exploration Systems Program. The site will be used to demonstrate advanced liquid hydrogen systems that are cost and energy efficient ways to store and transfer liquid hydrogen during process, loading, launch and spaceflight. The main components of the site will be a storage tank and a cryogenic refrigerator. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – Near the Hypergolic Maintenance Facility at NASA’s Kennedy Space Center in Florida, a groundbreaking ceremony was held to mark the location of the Ground Operations Demonstration Unit Liquid Hydrogen, or GODU LH2, test site. From left, are Johnny Nguyen, Fluids Test and Technology Development branch chief Emily Watkins, engineering intern Jeff Walls, Engineering Services Contract, or ESC, Cryogenics Test Lab engineer Kelly Currin, systems engineer Stephen Huff and Rudy Werlink partially hidden, cryogenics engineers Angela Krenn, systems engineer Doug Hammond, command and control engineer in the electrical division William Notardonato, GODU LH2 project manager and Kevin Jumper, ESC Cryogenics Test Lab manager. The GODU LH2 test site is one of the projects in NASA’s Advanced Exploration Systems Program. The site will be used to demonstrate advanced liquid hydrogen systems that are cost and energy efficient ways to store and transfer liquid hydrogen during process, loading, launch and spaceflight. The main components of the site will be a storage tank and a cryogenic refrigerator. Photo credit: NASA/Dimitri Gerondidakis

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s vertical assembly building on Sep. 26, 2025. The tank, which is designated for the agency’s Artemis III mission, is lifted and loaded into a production cell where it will be mated with the LH2 Transport Adapter Assembly for future transportation to NASA’s Kennedy Space Center. The engine section flight hardware structure was completed in 2022 and was shipped to Kennedy where teams continue to integrate vital systems. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis. Image credit: NASA/Michael DeMocker

Replicas of Christopher Columbus' sailing ships Santa Maria, Nina, and Pinta sail by Endeavour, Orbiter Vehicle (OV) 105, on Kennedy Space Center (KSC) Launch Complex (LC) Pad 39B awaiting liftoff on its maiden voyage, STS-49. This view was taken from the water showing the three ships silhouetted in the foreground with OV-105 on mobile launcher platform profiled against fixed service structure (FSS) tower and rectracted rotating service structure (RSS) in the background. Next to the launch pad (at right) are the sound suppression water system tower and the liquid hydrogen (LH2) storage tank. View provided by KSC with alternate number KSC-92PC-970.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

The Space Launch System (SLS) liquid hydrogen tank structural test article is loaded into Test Stand 4693 at NASA’s Marshall Space Flight Center in Huntsville, Alabama, on Jan. 14, 2019. The 149-foot piece of test hardware is the largest piece of structural hardware for the SLS core stage for America’s new deep space rocket Itis structurally identical to the flight version of the tank. It will undergo a series of tests in Test Stand 4693 to simulate the stresses and loads of liftoff and flight. These tests will help ensure designs are adequate for successful SLS missions to the Moon and beyond.

Technicians at NASA’s Michoud Assembly Facility in New Orleans move the liquid hydrogen tank of NASA’s Space Launch System (SLS) rocket to Cell A for white light scans of the tank’s dimensions in preparation of multiple join activities throughout the manufacturing process. The flight hardware will be used for Artemis III, one of the first crewed Artemis missions. The liquid hydrogen tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and is the largest of the five elements that make up the rocket’s 212-foot-tall core stage. The liquid hydrogen tank is situated between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to launch NASA’s Artemis missions to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Image credit: NASA/Michael DeMocker

Technicians at NASA’s Michoud Assembly Facility in New Orleans move the liquid hydrogen tank of NASA’s Space Launch System (SLS) rocket to Cell A for white light scans of the tank’s dimensions in preparation of multiple join activities throughout the manufacturing process. The flight hardware will be used for Artemis III, one of the first crewed Artemis missions. The liquid hydrogen tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and is the largest of the five elements that make up the rocket’s 212-foot-tall core stage. The liquid hydrogen tank is situated between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to launch NASA’s Artemis missions to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Image credit: NASA/Michael DeMocker

Technicians at NASA’s Michoud Assembly Facility in New Orleans move the liquid hydrogen tank of NASA’s Space Launch System (SLS) rocket to Cell A for white light scans of the tank’s dimensions in preparation of multiple join activities throughout the manufacturing process. The flight hardware will be used for Artemis III, one of the first crewed Artemis missions. The liquid hydrogen tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and is the largest of the five elements that make up the rocket’s 212-foot-tall core stage. The liquid hydrogen tank is situated between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to launch NASA’s Artemis missions to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Image credit: NASA/Michael DeMocker

Technicians at NASA’s Michoud Assembly Facility in New Orleans move the liquid hydrogen tank of NASA’s Space Launch System (SLS) rocket to Cell A for white light scans of the tank’s dimensions in preparation of multiple join activities throughout the manufacturing process. The flight hardware will be used for Artemis III, one of the first crewed Artemis missions. The liquid hydrogen tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and is the largest of the five elements that make up the rocket’s 212-foot-tall core stage. The liquid hydrogen tank is situated between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, will provide propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to launch NASA’s Artemis missions to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Image credit: NASA/Michael DeMocker

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams move a liquid hydrogen tank for NASA’s SLS (Space Launch System) rocket out of a priming cell and into an adjacent cell on May 20 at the agency’s Michoud Assembly Facility in New Orleans. Inside the cell, the tank, which will be used on the core stage of NASA’s Artemis III mission, will receive its thermal protection system. The thermal protection system, or spray-on foam insulation, provides protection to the core stage during launch. It is flexible enough to move with the rocket yet can withstand the aerodynamic pressures as the SLS accelerates from 0 to 17,500 mph and soars to more than 100 miles above the Earth. This third-generation insulation is more environmentally friendly and keeps the cryogenic propellant, which powers the rocket’s four RS-25 engines, extremely cold (the liquid hydrogen must remain at minus 423 degrees Fahrenheit/253 degrees Celsius) to remain in its liquid state. When applied the thermal protection system is a light-yellow color, which “tans” once exposed to the Sun’s ultraviolet rays, giving the SLS core stage its signature orange color.

Teams at NASA’s Michoud Assembly Facility in New Orleans move a liquid hydrogen tank for the agency’s SLS (Space Launch System) rocket into the factory’s final assembly area on April 22. Having recently completed application of the thermal protection system, teams will now continue outfitting the 130-foot-tall tank with critical systems to ready it for its designated Artemis III mission. The propellant tank is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis.