
The full United Delta IV Heavy with Orion on top is revealed on Dec. 3, 2014 as the mobile service tower is rolled back in preparation for the 7:05 am Exploration Flight Test-1 (EFT-1) launch. Part of Batch image transfer from Flickr.

TThe full United Delta IV Heavy with Orion on top is revealed on Dec. 3, 2014 as the mobile service tower is rolled back in preparation for the 7:05 am Exploration Flight Test-1 (EFT-1) launch. Part of Batch image transfer from Flickr.

The full United Delta IV Heavy with Orion on top is revealed on Dec. 3, 2014 as the mobile service tower is rolled back in preparation for the 7:05 am Exploration Flight Test-1 (EFT-1) launch. Part of Batch image transfer from Flickr.

The full United Delta IV Heavy with Orion on top is revealed on Dec. 3, 2014 as the mobile service tower is rolled back in preparation for the 7:05 am Exploration Flight Test-1 (EFT-1) launch. Part of Batch image transfer from Flickr.

The full United Delta IV Heavy with Orion on top is revealed on Dec. 3, 2014 as the mobile service tower is rolled back in preparation for the 7:05 am Exploration Flight Test-1 (EFT-1) launch. Part of Batch image transfer from Flickr.

The full United Delta IV Heavy with Orion on top is revealed on Dec. 3, 2014 as the mobile service tower is rolled back in preparation for the 7:05 am Exploration Flight Test-1 (EFT-1) launch. Part of Batch image transfer from Flickr.

The launch gantry is rolled back to reveal NASA's Orion spacecraft mounted atop a United Launch Alliance Delta IV Heavy rocket at Cape Canaveral Air Force Station's Space Launch Complex 37 on Dec. 3, 2014. Part of Batch image transfer from Flickr.

The launch gantry is rolled back to reveal NASA's Orion spacecraft mounted atop a United Launch Alliance Delta IV Heavy rocket at Cape Canaveral Air Force Station's Space Launch Complex 37 on Dec. 3, 2014. Part of Batch image transfer from Flickr.

At the time of launch, the Spitzer Space Telescope bore its original name: the Space Infrared Telescope Facility (SIRTF). It's shown here in the mobile service tower on Launch Pad 17-B, Cape Canaveral Air Force Station, waiting for encapsulation. https://photojournal.jpl.nasa.gov/catalog/PIA23649

The Delta II second stage for NASA Orbiting Carbon Observatory-2 mission, or OCO-2, is lifted to the top of the mobile service tower at Space Launch Complex 2 on Vandenberg Air Force Base in California.

Workers monitor the Delta II second stage for NASA OCO-2, as it is lifted into position for mating with the rocket first stage in the mobile service tower at Space Launch Complex 2 on Vandenberg Air Force Base in California.

This image from 1997 is of the Titan IVB/Centaur carrying NASA Cassini spacecraft at Launch Complex 40 on Cape Canaveral Air Station, the Mobile Service Tower has been retracted away.

At Space Launch Complex 2 on Vandenberg Air Force Base in California, NASA Soil Moisture Active Passive SMAP mission satellite is lifted up the side of a mobile service tower for mating to its Delta II rocket.

The Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard, Saturday, Aug. 11, 2018, Launch Complex 37 at Cape Canaveral Air Force Station in Florida. Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona. Here it will directly explore solar processes that are key to understanding and forecasting space weather events that can impact life on Earth. Photo Credit: (NASA/Bill Ingalls)

The Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard, Friday, Aug. 10, 2018, Launch Complex 37 at Cape Canaveral Air Force Station in Florida. Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona. Here it will directly explore solar processes that are key to understanding and forecasting space weather events that can impact life on Earth. Photo Credit: (NASA/Bill Ingalls)

The Mobile Service Tower is rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard, Saturday, Aug. 11, 2018, Launch Complex 37 at Cape Canaveral Air Force Station in Florida. Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona. Here it will directly explore solar processes that are key to understanding and forecasting space weather events that can impact life on Earth. Photo Credit: (NASA/Bill Ingalls)

A thin fog covers the mobile service tower and the United Launch Alliance (ULA) Delta II rocket with the NASA Ice, Cloud and land Elevation Satellite-2 (ICESat-2) onboard, Thursday, Sept. 13, 2018, Vandenberg Air Force Base in California. The ICESat-2 mission will measure the changing height of Earth's ice. Photo Credit: (NASA/Bill Ingalls)

This long exposure photograph shows the Mobile Service Tower being rolled back to reveal the United Launch Alliance Delta IV Heavy rocket with the Parker Solar Probe onboard, Friday, Aug. 10, 2018, Launch Complex 37 at Cape Canaveral Air Force Station in Florida. Parker Solar Probe is humanity’s first-ever mission into a part of the Sun’s atmosphere called the corona. Here it will directly explore solar processes that are key to understanding and forecasting space weather events that can impact life on Earth. Photo Credit: (NASA/Bill Ingalls)

The mobile service tower at SLC-3 is rolled back to reveal the United Launch Alliance (ULA) Atlas-V rocket with the NASA InSight spacecraft onboard, Friday, May 4, 2018, at Vandenberg Air Force Base in California. InSight, short for Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, is a Mars lander designed to study the "inner space" of Mars: its crust, mantle, and core. Photo Credit: (NASA/Bill Ingalls)

The Delta II second stage for NASA Orbiting Carbon Observatory-2 mission, or OCO-2, is positioned atop the rocket first stage in the mobile service tower at Space Launch Complex 2 on Vandenberg Air Force Base in California.

The Delta II second stage for NASA Orbiting Carbon Observatory-2 mission, or OCO-2, makes contact with the rocket first stage in the mobile service tower at Space Launch Complex 2 on Vandenberg Air Force Base in California.

Construction workers and crane specialists high up on the mobile launcher tower monitor the progress as a crane positions the bracket for the Orion Service Module Umbilical (OSMU) for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A view from below the mobile launcher shows a crane positioning the bracket for the Orion Service Module Umbilical (OSMU) high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

In this view looking down from high up on the mobile launcher, a crane positions the bracket for the Orion Service Module Umbilical (OSMU) for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Crane specialists monitor the progress as the bracket for the Orion Service Module Umbilical (OSMU) is lifted up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A long-exposure view of the mobile launcher at NASA's Kennedy Space Center in Florida. Cranes and rigging are being used to lift the bracket for the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower. The tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Preparations are underway to lift the bracket for the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to position the Orion Service Module Umbilical (OSMU) for installation high up on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A long-exposure view of the mobile launcher at NASA's Kennedy Space Center in Florida. Cranes and rigging are being used to lift the bracket for the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower. The tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Preparations are underway to lift the bracket for the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Preparations are underway to lift the bracket for the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to position the Orion Service Module Umbilical (OSMU) for installation high up on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane lifts the Orion Service Module Umbilical (OSMU) high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to lift the Orion Service Module Umbilical (OSMU) high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to position the Orion Service Module Umbilical (OSMU) for installation high up on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Crane specialists monitor the progress as the bracket for the Orion Service Module Umbilical (OSMU) is lifted high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A long-exposure view of the mobile launcher at NASA's Kennedy Space Center in Florida. Cranes and rigging are being used to lift the bracket for the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower. The tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to lift the Orion Service Module Umbilical (OSMU) high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to lift the Orion Service Module Umbilical (OSMU) high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Seeming to hang in midair, the Orion Service Module Umbilical (OSMU) is lifted high up by crane for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Preparations are underway to lift the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane lifts the bracket for the Orion Service Module Umbilical (OSMU) high up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane and rigging are used to lift the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Preparations are underway to lift the Orion Service Module Umbilical (OSMU) up for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

A crane positions the bracket for the Orion Service Module Umbilical (OSMU) for installation on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Construction workers assist as a crane and rigging are used to position the Orion Service Module Umbilical (OSMU) for installation high up on the mobile launcher tower at NASA's Kennedy Space Center in Florida. The mobile launcher tower will be equipped with a number of lines, called umbilicals, that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. EM-1 is scheduled to launch in 2018. The Ground Systems Development and Operations Program is overseeing installation of the umbilicals.

Protective doors have been closed on the mobile service tower at Space Launch Complex 2 at Vandenberg Air Force Base in California, on June 8, 2018. The United Launch Alliance Delta II first stage is lifted up and secured inside the tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

The United Launch Alliance Delta II first stage arrives at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be lifted to vertical and moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

At Vandenberg Air Force Base in California, NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) is inside the mobile service tower at Space Launch Complex 2, on Aug. 26, 2018. The satellite will be attached to the top of the United Launch Alliance Delta II rocket. Launch is scheduled for Sept. 15, 2018. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry the Advanced Topographic Laser Altimeter System (ATLAS). ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, are changing in a warming climate.

The United Launch Alliance Delta II first stage is lifted to vertical on the stand at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be lifted and moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

At Vandenberg Air Force Base in California, NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) is moved inside the mobile service tower at Space Launch Complex 2, on Aug. 26, 2018. The satellite will be attached to the top of the United Launch Alliance Delta II rocket. Launch is scheduled for Sept. 15, 2018. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry the Advanced Topographic Laser Altimeter System (ATLAS). ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, are changing in a warming climate.

The United Launch Alliance Delta II first stage is lifted up from its stand and moved into the mobile service tower at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

The United Launch Alliance Delta II first stage is lifted to vertical at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be lifted and moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

The United Launch Alliance Delta II first stage is lifted up in the mobile service tower at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

The United Launch Alliance Delta II first stage arrives at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be lifted to vertical and moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

The United Launch Alliance Delta II first stage arrives at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be lifted to vertical and moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

At Vandenberg Air Force Base in California, NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) is hoisted up by crane at the mobile service tower at Space Launch Complex 2, on Aug. 26, 2018. The satellite will be attached to the top of the United Launch Alliance Delta II rocket. Launch is scheduled for Sept. 15, 2018. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry the Advanced Topographic Laser Altimeter System (ATLAS). ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, are changing in a warming climate.

The United Launch Alliance Delta II first stage is lifted up and into the mobile service tower at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

Personnel atop the 402-ft. Mobile Service Structure look back at the Apollo 11 spacecraft as the tower is moved away during a Countdown Demonstration Test. Photo filed 11 July 1969.

KENNEDY SPACE CENTER, FLA. -- The Mobile Service Tower rolls back to the Delta II carrying the Gravity Probe B spacecraft at Space Launch Complex 2 on Vandenberg AFB after first launch attempt was scrubbed.

S68-55424 (17 Dec. 1968) --- Ground-level view of the Apollo 8 (Spacecraft 103/Saturn 503) space vehicle at Pad A, Launch Complex 39, Kennedy Space Center (KSC). The Apollo 8 stack was photographed during a prelaunch alert-mobile service structure pull back. (Mobile launch tower on left and mobile service structure on right.)

CAPE CANAVERAL, Fla. -- Artist's rendering of the Constellation Program's mobile launcher platform with an Ares I rocket attached. The tower of the mobile launcher will have multiple platforms for personnel access and will be approximately 390 feet tall. The tower will be used in the assembly, testing and servicing of the Ares rockets at Kennedy and will also transport the Ares rockets to the launch pad and provide ground support for launches.

CAPE CANAVERAL, Fla. -- Artist's rendering of the empty Constellation Program's mobile launcher platform planned for the Ares I rocket. The tower of the mobile launcher will have multiple platforms for personnel access and will be approximately 390 feet tall. The tower will be used in the assembly, testing and servicing of the Ares rockets at Kennedy and will also transport the Ares rockets to the launch pad and provide ground support for launches.

CAPE CANAVERAL, Fla. -- Artist's rendering of the Constellation Program's Ares V rocket on the mobile launcher platform (left) and the Ares I rocket on the platform (right) with the space shuttle in between for comparison. The tower of the mobile launcher will have multiple platforms for personnel access and will be approximately 390 feet tall. The tower will be used in the assembly, testing and servicing of the Ares rockets at Kennedy and will also transport the Ares rockets to the launch pad and provide ground support for launches.

KENNEDY SPACE CENTER, FLA. - At Launch Pad 17-B on Cape Canaveral Air Force Station, the Boeing Delta II second stage for the STEREO launch is moved inside the mobile service tower. The second stage then will be lifted into the mobile service tower and mated with first stage already in place. STEREO stands for Solar Terrestrial Relations Observatory and comprises two spacecraft. The STEREO mission is the first to take measurements of the sun and solar wind in 3-dimension. This new view will improve our understanding of space weather and its impact on the Earth. STEREO is expected to lift off in August 2006. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. - At Launch Pad 17-B on Cape Canaveral Air Force Station, the Boeing Delta II second stage for the STEREO launch is lifted alongside the mobile service tower. The second stage then will be lifted into the mobile service tower and mated with first stage already in place. STEREO stands for Solar Terrestrial Relations Observatory and comprises two spacecraft. The STEREO mission is the first to take measurements of the sun and solar wind in 3-dimension. This new view will improve our understanding of space weather and its impact on the Earth. STEREO is expected to lift off in August 2006. Photo credit: NASA/George Shelton

KENNEDY SPACE CENTER, FLA. - With guidelines attached, the second stage of the Boeing Delta II rocket is lifted by a crane toward the mobile service tower on Launch Pad 17-B on Cape Canaveral Air Force Station. The second stage then will be lifted into the mobile service tower and mated with first stage already in place. STEREO stands for Solar Terrestrial Relations Observatory and comprises two spacecraft. The STEREO mission is the first to take measurements of the sun and solar wind in 3-dimension. This new view will improve our understanding of space weather and its impact on the Earth. STEREO is expected to lift off in August 2006. Photo credit: NASA/George Shelton

NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2), at right, encased in its protective covering, arrives at the mobile service tower at Space Launch Complex 2 at Vandenberg Air Force Base in California, on Aug. 26, 2018. The satellite will be hoisted up by crane and attached to the United Launch Alliance Delta II rocket. Launch is scheduled for Sept. 15, 2018. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry the Advanced Topographic Laser Altimeter System (ATLAS). ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, are changing in a warming climate.

NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2), encased in its protective covering, arrives at the mobile service tower at Space Launch Complex 2 at Vandenberg Air Force Base in California, on Aug. 26, 2018. The satellite will be hoisted up by crane and attached to the United Launch Alliance Delta II rocket. Launch is scheduled for Sept. 15, 2018. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry the Advanced Topographic Laser Altimeter System (ATLAS). ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, are changing in a warming climate.

United Launch Alliance (ULA) workers assist as the Delta II first stage is lifted to vertical at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

United Launch Alliance (ULA) workers assist as the Delta II first stage is lifted to vertical at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. The booster will be moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

The United Launch Alliance Delta II first stage is lifted to vertical at Space Launch Complex 2 on June 8, 2018, at Vandenberg Air Force Base in California. ULA workers make adjustments so the booster can be lifted up from its stand and moved into the mobile service tower. NASA's Ice, Cloud and land Elevation Satellite-2 (ICESat-2) will launch on the final Delta II rocket. ICESat-2 will measure the height of a changing Earth, one laser pulse at a time, 10,000 laser pulses a second. The satellite will carry a single instrument, the Advanced Topographic Laser Altimeter System. ICESat-2 will help scientists investigate why, and how much our planet's frozen and icy areas, called the cryosphere, is changing in a warming climate.

CAPE CANAVERAL, Fla. – The tilt of the mobile service tower, or gantry, at Space Launch Complex 40 on Cape Canaveral Air Force Station signals the early stages of the tower’s implosion. The tall lightning towers around it will remain. This mammoth structure, with its cavernous clean room, was used for the final spacecraft launch preparations for NASA’s Cassini spacecraft, currently orbiting Saturn. The launch occurred on Oct. 15, 1997, aboard an Air Force Titan IV-Centaur rocket. The facilities at the pad are being dismantled to make room for the construction of launch pad access and servicing facilities for the new Falcon rockets to be launched by Space Exploration Technologies, known as SpaceX. Photo credit: NASA/Cory Huston

KENNEDY SPACE CENTER, FLA. -- Workers are dwarfed by the fallen 300-foot, five-million-pound Mobile Service Tower (MST) on Launch Complex 41, Cape Canaveral Air Force Station. The MST and a 200-foot-high umbilical tower nearby were demolished to make room for Lockheed Martin's 14-acre Vehicle Integration Facility (VIF), under construction. Only lightning protection towers remain standing at the site. About 200 pounds of linear-shaped charges were used to bring down the towers so that the materials can be recycled. The implosion and removal of the tower debris is expected to be completed in two months. The VIF will be used for Lockheed Martin's Atlas V Launch System.

KENNEDY SPACE CENTER, FLA. -- The first stage of a United Launch Alliance Delta II rocket moves into place in front of at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket will be raised to a vertical position and lifted into the tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15. Photo credit: NASA/George Shelton

The first stage of a United Launch Alliance Delta II rocket moves into place in front of at the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida. The rocket will be raised to a vertical position and lifted into the tower. The rocket is the launch vehicle for the THEMIS spacecraft, consisting of five identical probes, the largest number of scientific satellites ever launched into orbit aboard a single rocket. This unique constellation of satellites will resolve the tantalizing mystery of what causes the spectacular sudden brightening of the aurora borealis and aurora australis - the fiery skies over the Earth's northern and southern polar regions. After the first stage is in the mobile service tower on the pad, nine solid rocket boosters will be placed around the base of the first stage and attached in sets of three. THEMIS is scheduled to launch aboard the Delta II at 6:07 p.m. EST on Feb. 15.

Testing of the Orion Service Module Umbilical (OSMU) was completed at the Launch Equipment Test Facility at NASA’s Kennedy Space Center in Florida. The OSMU was attached to Vehicle Motion Simulator 1 for a series of simulated launch tests to validate it for installation on the mobile launcher. The test team gathered with a special banner during an event to mark the end of testing. The mobile launcher tower will be equipped with a number of lines, called umbilicals that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. Kennedy's Engineering Directorate is providing support to the Ground Systems Development and Operations Program for testing of the OSMU. EM-1 is scheduled to launch in 2018.

Testing of the Orion Service Module Umbilical (OSMU) was completed at the Launch Equipment Test Facility at NASA’s Kennedy Space Center in Florida. The OSMU was attached to Vehicle Motion Simulator 1 for a series of simulated launch tests to validate it for installation on the mobile launcher. One of the test team members signs a banner during an event to mark the end of testing. The mobile launcher tower will be equipped with a number of lines, called umbilicals that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. Kennedy's Engineering Directorate is providing support to the Ground Systems Development and Operations Program for testing of the OSMU. EM-1 is scheduled to launch in 2018.

Testing of the Orion Service Module Umbilical (OSMU) was completed at the Launch Equipment Test Facility at NASA’s Kennedy Space Center in Florida. The OSMU was attached to Vehicle Motion Simulator 1 for a series of simulated launch tests to validate it for installation on the mobile launcher. The mobile launcher tower will be equipped with a number of lines, called umbilicals that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. Kennedy's Engineering Directorate is providing support to the Ground Systems Development and Operations Program for testing of the OSMU. EM-1 is scheduled to launch in 2018.

Testing of the Orion Service Module Umbilical (OSMU) was completed at the Launch Equipment Test Facility at NASA’s Kennedy Space Center in Florida. The OSMU was attached to Vehicle Motion Simulator 1 for a series of simulated launch tests to validate it for installation on the mobile launcher. The test team signed a special banner during an event to mark the end of testing. The mobile launcher tower will be equipped with a number of lines, called umbilicals that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. Kennedy's Engineering Directorate is providing support to the Ground Systems Development and Operations Program for testing of the OSMU. EM-1 is scheduled to launch in 2018.

Testing of the Orion Service Module Umbilical (OSMU) was completed at the Launch Equipment Test Facility at NASA’s Kennedy Space Center in Florida. The OSMU was attached to Vehicle Motion Simulator 1 for a series of simulated launch tests to validate it for installation on the mobile launcher. Patrick Simpkins, director of Engineering, speaks to the test team during an event to mark the end of testing. The mobile launcher tower will be equipped with a number of lines, called umbilicals that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. Kennedy's Engineering Directorate is providing support to the Ground Systems Development and Operations Program for testing of the OSMU. EM-1 is scheduled to launch in 2018.

Testing of the Orion Service Module Umbilical (OSMU) was completed at the Launch Equipment Test Facility at NASA’s Kennedy Space Center in Florida. The OSMU was attached to Vehicle Motion Simulator 1 for a series of simulated launch tests to validate it for installation on the mobile launcher. The test team gathered for an event to mark the end of testing. The mobile launcher tower will be equipped with a number of lines, called umbilicals that will connect to the Space Launch System rocket and Orion spacecraft for Exploration Mission-1 (EM-1). The OSMU will be located high on the mobile launcher tower and, prior to launch, will transfer liquid coolant for the electronics and air for the Environmental Control System to the Orion service module that houses these critical systems to support the spacecraft. Kennedy's Engineering Directorate is providing support to the Ground Systems Development and Operations Program for testing of the OSMU. EM-1 is scheduled to launch in 2018.

KENNEDY SPACE CENTER, FLA. — Two 34-year-old towers on Launch Complex 41, Cape Canaveral Air Station, fall to the ground amid the black smoke from explosives set to topple them. Weighing two million pounds, the umbilical tower (left) was approximately 200 feet high. The taller 300-foot Mobile Service Tower (right), still falling, weighs five million pounds. About 200 pounds of linear-shaped charges were used to topple the towers so that the materials can be recycled. Adjacent to the towers are lightning protection structures, which will remain on the site. The towers are being demolished to make room for Lockheed Martin's 14-acre Vehicle Integration Facility (VIF), under construction. The implosion and removal of the tower debris is expected to be completed in two months. The VIF will be used for Lockheed Martin's Atlas V Launch System.

KENNEDY SPACE CENTER, FLA. — Two 34-year-old towers on Launch Complex 41, Cape Canaveral Air Station, lie on the ground amid the black smoke from explosives set to topple them. Weighing two million pounds, the umbilical tower (left) was approximately 200 feet high. The taller 300-foot Mobile Service Tower (right) weighs five million pounds. About 200 pounds of linear-shaped charges were used to topple the towers so that the materials can be recycled. Adjacent to the towers are lightning protection structures, which will remain on the site. The towers are being demolished to make room for Lockheed Martin's 14-acre Vehicle Integration Facility (VIF), under construction. The implosion and removal of the tower debris is expected to be completed in two months. The VIF will be used for Lockheed Martin's Atlas V Launch System.

KENNEDY SPACE CENTER, FLA. — Two 34-year-old towers on Launch Complex 41, Cape Canaveral Air Station, fall to the ground amid the black smoke from explosives set to topple them. Weighing two million pounds, the umbilical tower (left) was approximately 200 feet high. The taller 300-foot Mobile Service Tower (right) weighs five million pounds. About 200 pounds of linear-shaped charges were used to topple the towers so that the materials can be recycled. Adjacent to the towers are lightning protection structures, which will remain on the site. The towers are being demolished to make room for Lockheed Martin's 14-acre Vehicle Integration Facility (VIF), under construction. The implosion and removal of the tower debris is expected to be completed in two months. The VIF will be used for Lockheed Martin's Atlas V Launch System.

KENNEDY SPACE CENTER, FLA. - This view from the mobile service tower on Launch Complex 17-B, Cape Canaveral Air Force Station, shows two solid rocket boosters (SRBs) already suspended in the tower while another is being lifted. They are three of nine 46-inch-diameter, stretched SRBs that are being attached to the Delta II Heavy rocket that will launch the Space Infrared Telescope Facility (SIRTF). Consisting of three cryogenically cooled science instruments and an 0.85-meter telescope, SIRTF is one of NASA's largest infrared telescopes to be launched. SIRTF will obtain images and spectra by detecting the infrared energy, or heat, radiated by objects in space. Most of this infrared radiation is blocked by the Earth's atmosphere and cannot be observed from the ground.

KENNEDY SPACE CENTER, FLA. - This view from the mobile service tower on Launch Complex 17-B, Cape Canaveral Air Force Station, shows two solid rocket boosters (SRBs) already suspended in the tower while another is being lifted. They are three of nine 46-inch-diameter, stretched SRBs that are being attached to the Delta II Heavy rocket that will launch the Space Infrared Telescope Facility (SIRTF). Consisting of three cryogenically cooled science instruments and an 0.85-meter telescope, SIRTF is one of NASA's largest infrared telescopes to be launched. SIRTF will obtain images and spectra by detecting the infrared energy, or heat, radiated by objects in space. Most of this infrared radiation is blocked by the Earth's atmosphere and cannot be observed from the ground.

KENNEDY SPACE CENTER, FLA. - On Pad 17-B, Cape Canaveral Air Force Station, a third Solid Rocket Booster (SRB) is raised from its transporter under the mobile service tower. It will be lifted up the tower to join the other SRBs there and later mated to the Boeing Delta II Heavy rocket for the Aug. 2 launch of the MESSENGER spacecraft to the planet Mercury. The spacecraft is expected to reach orbit around Mercury in March 2011. MESSENGER was built for NASA by the Johns Hopkins University Applied Physics Laboratory in Laurel, Md.

KENNEDY SPACE CENTER, FLA. - On Pad 17-B, Cape Canaveral Air Force Station, the mobile service tower at left moves toward the Boeing Delta II Heavy rocket at right. The tower holds three out of nine Solid Rocket Boosters (SRBs) that will be mated to the Boeing Delta II for the Aug. 2 launch of the MESSENGER spacecraft to the planet Mercury. The spacecraft is expected to reach orbit around Mercury in March 2011. MESSENGER was built for NASA by the Johns Hopkins University Applied Physics Laboratory in Laurel, Md.

KENNEDY SPACE CENTER, FLA. - In the mobile service tower on Pad 17-B, Cape Canaveral Air Force Station , Fla., the Boeing Delta II interstage adapter is being lowered out of the tower. The interstage adapter was found to be faulty during a review of launch vehicle hardware. It will be replaced, and the second stage previously removed will be re-installed within a few days. Launch of Deep Impact is now scheduled no earlier than Jan. 12.

KENNEDY SPACE CENTER, FLA. - In the mobile service tower on Pad 17-B, Cape Canaveral Air Force Station , Fla., the Boeing Delta II interstage adapter is being lowered out of the tower. The interstage adapter was found to be faulty during a review of launch vehicle hardware. It will be replaced, and the second stage previously removed will be re-installed within a few days. Launch of Deep Impact is now scheduled no earlier than Jan. 12.

KENNEDY SPACE CENTER, FLA. -- Live TV trucks from local channels merge at the site of the fallen Mobile Service Tower (MST) and umbilical tower nearby after their demolition. The towers were demolished to make room for Lockheed Martin's 14-acre Vehicle Integration Facility (VIF), under construction. Weighing two million pounds, the umbilical tower was approximately 200 feet high. The taller 300-foot MST weighed five million pounds. About 200 pounds of linear-shaped charges were used to bring down the towers so that the materials can be recycled. The implosion and removal of the tower debris is expected to be completed in two months. The VIF will be used for Lockheed Martin's Atlas V Launch System.

KENNEDY SPACE CENTER, FLA. -- Live TV trucks (far right) from local channels merge at the site of the fallen Mobile Service Tower (MST) and umbilical tower nearby after their demolition. The towers were demolished to make room for Lockheed Martin's 14-acre Vehicle Integration Facility (VIF), under construction. Weighing two million pounds, the umbilical tower was approximately 200 feet high. The taller 300-foot MST weighed five million pounds. About 200 pounds of linear-shaped charges were used to bring down the towers so that the materials can be recycled. The implosion and removal of the tower debris is expected to be completed in two months. The VIF will be used for Lockheed Martin's Atlas V Launch System.

CAPE CANAVERAL, Fla. – The mobile service tower, or gantry, at Space Launch Complex 40 on Cape Canaveral Air Force Station falls to the ground after the base was demolished. The tall lightning towers around it will remain. This mammoth structure, with its cavernous clean room, was used for the final spacecraft launch preparations for NASA’s Cassini spacecraft, currently orbiting Saturn. The launch occurred on Oct. 15, 1997, aboard an Air Force Titan IV-Centaur rocket. The facilities at the pad are being dismantled to make room for the construction of launch pad access and servicing facilities for the new Falcon rockets to be launched by Space Exploration Technologies, known as SpaceX. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – Fire erupts beneath the mobile service tower, or gantry, at Space Launch Complex 40 on Cape Canaveral Air Force Station signals the beginning of its demolition. The tall lightning towers around it will remain. This mammoth structure, with its cavernous clean room, was used for the final spacecraft launch preparations for NASA’s Cassini spacecraft, currently orbiting Saturn. The launch occurred on Oct. 15, 1997, aboard an Air Force Titan IV-Centaur rocket. The facilities at the pad are being dismantled to make room for the construction of launch pad access and servicing facilities for the new Falcon rockets to be launched by Space Exploration Technologies, known as SpaceX. Photo credit: NASA/Cory Huston

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.

CAPE CANAVERAL, Fla. – The mobile service tower, or gantry, in the foreground at Space Launch Complex 40 on Cape Canaveral Air Force Station, is scheduled for demolition. The tall lightning towers around it will remain. This mammoth structure, with its cavernous clean room, was used for the final spacecraft launch preparations for NASA’s Cassini spacecraft, currently orbiting Saturn. The launch occurred on Oct. 15, 1997, aboard an Air Force Titan IV-Centaur rocket. The facilities at the pad are being dismantled to make room for the construction of launch pad access and servicing facilities for the new Falcon rockets to be launched by Space Exploration Technologies, known as SpaceX. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – The upper part of the mobile service tower, or gantry, at Space Launch Complex 40 on Cape Canaveral Air Force Station lies on the ground after implosion. The tall lightning towers around it remain. This mammoth structure, with its cavernous clean room, was used for the final spacecraft launch preparations for NASA’s Cassini spacecraft, currently orbiting Saturn. The launch occurred on Oct. 15, 1997, aboard an Air Force Titan IV-Centaur rocket. The facilities at the pad are being dismantled to make room for the construction of launch pad access and servicing facilities for the new Falcon rockets to be launched by Space Exploration Technologies, known as SpaceX. Photo credit: NASA/Cory Huston

CAPE CANAVERAL, Fla. – The upper part of the mobile service tower, or gantry, at Space Launch Complex 40 on Cape Canaveral Air Force Station falls to the ground after the base was demolished. The tall lightning towers around it will remain. This mammoth structure, with its cavernous clean room, was used for the final spacecraft launch preparations for NASA’s Cassini spacecraft, currently orbiting Saturn. The launch occurred on Oct. 15, 1997, aboard an Air Force Titan IV-Centaur rocket. The facilities at the pad are being dismantled to make room for the construction of launch pad access and servicing facilities for the new Falcon rockets to be launched by Space Exploration Technologies, known as SpaceX. Photo credit: NASA/Cory Huston

KENNEDY SPACE CENTER, FLA. - Workers on Launch Complex 17-B, Cape Canaveral Air Force Station, help steady a solid rocket booster (SRB) being lifted into the mobile service tower. It is one of nine 46-inch-diameter, stretched SRBs that are being attached to the Delta II Heavy rocket that will launch the Space Infrared Telescope Facility (SIRTF). Consisting of three cryogenically cooled science instruments and an 0.85-meter telescope, SIRTF is one of NASA's largest infrared telescopes to be launched. SIRTF will obtain images and spectra by detecting the infrared energy, or heat, radiated by objects in space. Most of this infrared radiation is blocked by the Earth's atmosphere and cannot be observed from the ground.