
Engineers perform mass properties testing on the rocket-powered descent stage of NASA’s Mars Perseverance rover at Kennedy Space Center on April 12, 2020. The testing to determine the center of gravity, or the point at which weight is evenly dispersed on all sides, was performed inside the Florida spaceport’s Payload Hazardous Servicing Facility. The descent stage will lower the rover through the thin Martian atmosphere and onto the surface on Feb. 18, 2021. Liftoff, aboard a United Launch Alliance Atlas V 541 rocket, is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch. The rover will seek signs of ancient life and collect rock and soil samples for possible return to Earth.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Backshell-Powered Descent Vehicle, in view, and Entry Vehicle assemblies are being attached to the Mars Perseverance rover on May 29, 2020. The cone-shaped backshell contains the parachute, and along with the mission’s heat shield, provides protection for the rover and descent stage during Martian atmospheric entry. The Mars Perseverance rover is scheduled to launch on July 20 atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, members of the news media get a close-up view of a Cygnus cargo vessel. The spacecraft is scheduled for the upcoming Orbital ATK Commercial Resupply Services-6 mission to deliver hardware and supplies to the International Space Station. Reporters, technicians and engineers are clad in "bunny suits." The cleanroom garments are worn to prevent contamination in the controlled environment. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22.

The transport carrier containing the five-panel solar arrays for NASA’s Europa Clipper spacecraft arrives at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Wednesday, Feb. 21, 2024. The solar array travelled by air from Leiden, Netherlands, where Airbus workers assembled them over the last year, and then put on a barge to travel to the Port of Miami in Florida and loaded onto a semi-truck to be driven to Kennedy. The solar arrays will attach to the spacecraft to power it for the 1.8-billion-mile journey to study Jupiter’s icy moon, Europa. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the hatch is closed for the upcoming flight of a Cygnus cargo vessel. The spacecraft is scheduled for the upcoming Orbital ATK Commercial Resupply Services-6 mission to deliver hardware and supplies to the International Space Station. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians have completed installation of the final cargo and power in the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Mars 2020 Lift Activities in Payload Hazardous Serviceing Facility (PHSF)

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians begin the process to install several Nanoracks on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians assist as a crane lowers the Orbital ATK Cygnus pressurized cargo module, enclosed in its payload fairing, onto a KAMAG transporter. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Technicians dressed in clean room suits move NASA's Transiting Exoplanet Survey Satellite (TESS) on a test stand inside the Payload Hazardous Servicing Facility (PHSF) at the agency's Kennedy Space Center in Florida. Inside the PHSF, the satellite will be processed and prepared for its flight. TESS is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

Technicians dressed in clean room suits monitor the progress as a crane lowers NASA's Transiting Exoplanet Survey Satellite (TESS) onto a test stand inside the Payload Hazardous Servicing Facility (PHSF) at the agency's Kennedy Space Center in Florida. Inside the PHSF, the satellite will be processed and prepared for its flight. TESS is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians are opening the hatch on the Orbital ATK Cygnus pressurized cargo module to prepare for late stowage of supplies and hardware. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station targeted for March 24, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

A technician inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida installs a memory card containing a total of 1,350,144 names as part of a commemorative plaque on the Nancy Grace Roman Space Telescope on Friday, July 17, 2026. The names, submitted by people from across the globe, including astronauts from NASA’s Artemis II and Artemis III missions, will travel with the Roman observatory to the Sun-Earth Lagrange point 2, or L2, about one million miles from Earth, where the Sun’s and Earth’s gravity balance out. Roman is named after Dr. Nancy Grace Roman, NASA’s first chief astronomer and one of the architects of the agency’s modern science program.

Technicians at NASA’s Payload Hazardous Servicing Facility at Kennedy Space Center in Florida offload eight high‑efficiency particulate air (HEPA) wall modules and other ground support equipment on Monday, April 27, 2026, as part of preparations for arrival of NASA’s Nancy Grace Roman Space Telescope. Each 1,800‑pound module enhances the 40-year-old facility’s clean room systems, helping meet the telescope’s stringent cleanliness requirements during prelaunch processing. Teams are targeting launch as soon as early September aboard a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA Kennedy.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the agency’s Mars 2020 Perseverance rover is being prepared for encapsulation in the United Launch Alliance Atlas V payload fairing on June 18, 2020. The Mars Perseverance rover is scheduled to launch on July 20, 2020, atop the Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover’s seven instruments will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Mars 2020 logo is installed on the United Launch Alliance Atlas V payload fairing on June 18, 2020. Secured inside the fairing is the agency’s Mars 2020 Perseverance rover. The rover is scheduled to launch on July 20, 2020, atop the Atlas V 541 rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover’s seven instruments will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

A KAMAG transporter with Orbital ATK's CYGNUS pressurized cargo module secured on top is moved inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. CYGNUS will be lifted off of the transporter and lowered onto a processing stand for final propellant loading and late cargo stowage. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station on March 19, 2017. CYGNUS will deliver thousands of pounds of supplies, equipment and scientific research materials to the space station.

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida prepare to rotate the agency’s largest planetary mission spacecraft, Europa Clipper, to a vertical position on Tuesday, May 28, 2024, as part of prelaunch processing. Slated to launch aboard a SpaceX Falcon Heavy rocket later this year from Launch Complex 39A at Kennedy, Europa Clipper will help determine if conditions exist below the surface Jupiter’s fourth largest moon, Europa, that could support life.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, workers prepare to install the Sample Caching System Sterile Flight Model hardware on the Mars Perseverance rover on May 21, 2020. The system includes 39 sample tubes that will be inserted into the underside of the rover. Each tube is sheathed in a gold-colored cylindrical enclosure to protect it from contamination. Perseverance rover will carry 43 sample tubes in total to Mars' Jezero Crater. The Mars Perseverance rover is scheduled to launch in mid-July atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

A KAMAG transporter with Orbital ATK's CYGNUS pressurized cargo module secured on top moves from the airlock into the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Cygnus will be moved to a work stand for final propellant loading and late cargo stowage. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station on March 19, 2017. CYGNUS will deliver thousands of pounds of supplies, equipment and scientific research materials to the space station.

Tests to measure the center of gravity and moments of inertia for the Mars 2020 rover aeroshell are performed on the spin table inside Kennedy Space Center’s Payload Hazardous Servicing Facility on Jan. 15, 2020. The Mars 2020 rover will carry seven different scientific instruments, landing on the Red Planet on Feb. 18, 2021. It is scheduled to launch aboard a United Launch Alliance Atlas V 541 rocket, procured by NASA’s Launch Services Program, in the summer of 2020.

A KAMAG transporter with Orbital ATK's CYGNUS pressurized cargo module secured on top slowly moves from the airlock into the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Cygnus will be moved to a work stand for final propellant loading and late cargo stowage. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station on March 19, 2017. CYGNUS will deliver thousands of pounds of supplies, equipment and scientific research materials to the space station.

NASA’s Mars Helicopter is installed on the agency’s Mars Perseverance rover inside the Payload Hazardous Servicing Facility at Florida’s Kennedy Space Center on April 6, 2020. Perseverance safely lands on Mars, the helicopter will be released to perform the first in a series of flight tests that will take place during a period of about 30 days. The helicopter will be the first aircraft to fly on another planet. Perseverance, carrying the helicopter, will touch down on the Red Planet on Feb. 18, 2021. Liftoff aboard a United Launch Alliance Atlas V 541 rocket is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station.

Technicians attach the five-panel solar arrays to NASA’s Europa Clipper spacecraft inside the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Friday, Aug. 2, 2024. The huge arrays – spanning more than 100 feet when fully deployed, or about the length of a basketball court – will collect sunlight to power the spacecraft as it explores Jupiter’s icy moon, Europa, conducting science investigations to determine its potential to support life.

NASA's Transiting Exoplanet Survey Satellite (TESS), inside its shipping container, is moved into Payload Hazardous Servicing Facility (PHSF) at the agency's Kennedy Space Center in Florida. Inside the PHSF, the satellite will be processed and prepared for its flight. TESS is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

The transport carrier containing the five-panel solar arrays for NASA’s Europa Clipper spacecraft arrives at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Wednesday, Feb. 21, 2024. The solar array travelled by air from Leiden, Netherlands, where Airbus workers assembled them over the last year, and then put on a barge to travel to the Port of Miami in Florida and loaded onto a semi-truck to be driven to Kennedy. The solar arrays will attach to the spacecraft to power it for the 1.8-billion-mile journey to study Jupiter’s icy moon, Europa. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Technicians hoist a five-panel solar array protected by a lid for NASA’s Europa Clipper spacecraft at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Tuesday, Feb. 27, 2024. The arrays are each 46.5 feet long (14.2 meters). With both solar arrays deployed, Europa Clipper will span more than 100 feet long, about the length of a basketball court. The solar arrays power the spacecraft so it can study Jupiter’s icy moon, Europa, which is more than five times as far from the Sun as the Earth. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida monitor movement and guide the agency’s largest planetary mission spacecraft, Europa Clipper, as a crane hoists it on a stand as part of prelaunch processing on Tuesday, May 28, 2024. Slated to launch aboard a SpaceX Falcon Heavy rocket later this year from Launch Complex 39A at Kennedy, Europa Clipper will help determine if conditions exist below the surface Jupiter’s fourth largest moon, Europa that could support life.

Engineers perform mass properties testing on NASA’s Mars Perseverance rover inside Kennedy Space Center’s Payload Hazardous Servicing Facility on April 7, 2020. The rover was rotated clockwise and counterclockwise on a spin table to determine the center of gravity, or the point at which weight is evenly dispersed on all sides. Establishing the rover’s center of gravity will help ensure the spacecraft will land on Mars as calculated. Perseverance will touch down on the Red Planet on Feb. 18, 2021. Liftoff aboard a United Launch Alliance Atlas V 541 rocket is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch.

During a key integration milestone for NASA’s Nancy Grace Roman Space Telescope, technicians and engineers from the agency's Jet Propulsion Lab in Southern California gather inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida on Wednesday, July 8, 2026, following the closeout of the observatory’s Coronagraph Instrument test connector panel. Roman carries one science instrument called the Wide Field Instrument, and one technology demonstration called the Roman Coronagraph Instrument. The coronagraph is a system of masks, prisms, detectors, and even self-flexing mirrors built to block out the glare from distant stars and directly image the planets in orbit around them. The Roman Coronagraph will be the first active coronagraph to fly in space, meaning it contains components that actively respond to variables that would usually cause starlight to scatter, making it harder to see nearby planets.

The transport carrier containing the five-panel solar arrays for NASA’s Europa Clipper spacecraft arrives at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Wednesday, Feb. 21, 2024. The arrival completes the solar array journey which began in Leiden, Netherlands, where Airbus workers assembled them before shipping them by barge to Port of Miami in Florida and transporting them by truck to Kennedy. The solar arrays will attach to the spacecraft to power it on the 1.8-billion-mile journey to study Jupiter’s icy moon, Europa. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Technicians work to complete operations before propellant load occurs ahead of launch for NASA’s Europa Clipper spacecraft inside the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Tuesday, Sept. 11, 2024. Europa could have all the “ingredients” for life as we know it: water, organics, chemical energy, and stability. Europa Clipper’s launch period opens on October 10, 2024.

As part of prelaunch processing, crews inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida uncrate the agency’s largest planetary mission spacecraft, Europa Clipper, on Tuesday, May 28, 2024. Slated to launch aboard a SpaceX Falcon Heavy rocket later this year from Launch Complex 39A at Kennedy, Europa Clipper will help determine if conditions exist below the surface Jupiter’s fourth largest moon, Europa, that could support life.

Inside the Payload Hazardous Servicing Facility at the NASA's Kennedy Space Center in Florida, one of the solar panels is being deployed on the agency's Transiting Exoplanet Survey Satellite (TESS). Technicians are preparing to deploy the second solar array. The satellite is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

Technicians move cargo into the Orbital ATK CRS-6 pressurized cargo module during late stowage inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida. The spacecraft is scheduled for the upcoming Orbital ATK Commercial Resupply Services-6 mission to deliver hardware and supplies to the International Space Station. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22.

Technicians hoist a five-panel solar array protected by a lid for NASA’s Europa Clipper spacecraft at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Tuesday, Feb. 27, 2024. The arrays are each 46.5 feet long (14.2 meters). With both solar arrays deployed, Europa Clipper will span more than 100 feet long, about the length of a basketball court. The solar arrays power the spacecraft so it can study Jupiter’s icy moon, Europa, which is more than five times as far from the Sun as the Earth. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians install thermal blankets around the area where several Nanoracks will be installed on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

MSL Rover Arm Stowage

The Spacecraft Assembly and Rotation Fixture (SCARF) that will be used to process the Mars 2020 rover is photographed inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida on Nov. 22, 2019. Attached to the SCARF is an access stand that will allow personnel to reach the spacecraft when it’s held above ground level. The Mars 2020 rover is being manufactured at the agency’s Jet Propulsion Laboratory in California and, once complete, will be sent to Kennedy for assembly, prelaunch processing and checkouts. The rover is scheduled to launch from Cape Canaveral Air Force Station in summer 2020 aboard a United Launch Alliance Atlas V rocket procured from NASA’s Launch Services Program. The mission will help the agency better understand the geology of Mars, test new robotic technology and assist in determining if any form of life ever was supported on the Red Planet.

MSL Rover Arm Stowage

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida install and test antennas on a solar array on Wednesday, March 20, 2024, for the agency’s Europa Clipper spacecraft which will study Jupiter’s icy moon Europa to determine if the planet has conditions that could support life. The REASON, (Radar for Europa Assessment and Sounding: Ocean to Near-surface) instrument will use the antennas to send both High Frequency (HF) and Very High Frequency (VHF) radio waves to penetrate up to 18 miles (30 kilometers) deep and search the ocean, measure ice thickness, and study the topography, composition, and roughness of Europa’s surface. The Europa Clipper spacecraft will ship to Florida later this year from NASA’s Jet Propulsion Lab in Southern California in preparation for launch aboard a SpaceX Falcon Heavy rocket from Kennedy’s Launch Complex 39A targeting October.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Backshell-Powered Descent Vehicle and Entry Vehicle assemblies are being prepared to be attached to the Mars Perseverance rover on May 5, 2020. The cone-shaped backshell contains the parachute, and along with the mission’s heat shield, provides protection for the rover and descent stage during Martian atmospheric entry. The Mars Perseverance rover is scheduled to launch in mid-July atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

The sun sets on Sunday, June 21, 2026, at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida before the arrival of NASA’s Nancy Grace Roman Space Telescope to undergo prelaunch processing. Named for NASA’s first chief astronomer and “mother of the Hubble Space Telescope,” Roman will offer a field of view over 100 times larger than Hubble’s to study up to a billion galaxies, directly image exoplanets and planet‑forming disks, and address fundamental questions about dark energy, exoplanets, and infrared astrophysics. Liftoff atop a SpaceX Falcon Heavy rocket from NASA Kennedy’s Launch Complex 39A is targeted no earlier than Sunday, Aug. 30, 2026.

Technicians and engineers inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida clean and inspect the Solar Array Sun Shield (SASS) on the agency’s Nancy Grace Roman Space Telescope on Tuesday, July 14, 2026. The SASS is made up of six solar array panels, with the two center panels fixed while the four outer ones are deployed once in orbit. The Roman team will orient the SASS toward the Sun to provide power to the entire observatory and shade the telescope and instruments beneath. NASA designed this flagship mission to help astronomers explore dark matter, dark energy, and exoplanets.

A technician dressed in a clean room suit closely monitors the progress as a crane lowers NASA's Transiting Exoplanet Survey Satellite (TESS) onto a test stand inside the Payload Hazardous Servicing Facility (PHSF) at the agency's Kennedy Space Center in Florida. Inside the PHSF, the satellite will be processed and prepared for its flight. TESS is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the agency’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer, or OSIRIS-REx spacecraft is encapsulated in its payload fairing. Targeted for liftoff at 7:05 p.m. EDT Sept. 8, 2016, OSIRIS-Rex will be the first U.S. mission to sample an asteroid, retrieve at least two ounces of surface material and return it to Earth for study. The asteroid, Bennu, may hold clues to the origin of the solar system and the source of water and organic molecules found on Earth.

Engineers perform mass properties testing on the rocket-powered descent stage of NASA’s Mars Perseverance rover at Kennedy Space Center on April 12, 2020. The testing to determine the center of gravity, or the point at which weight is evenly dispersed on all sides, was performed inside the Florida spaceport’s Payload Hazardous Servicing Facility. The descent stage will lower the rover through the thin Martian atmosphere and onto the surface on Feb. 18, 2021. Liftoff, aboard a United Launch Alliance Atlas V 541 rocket, is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch. The rover will seek signs of ancient life and collect rock and soil samples for possible return to Earth.

Encapsulated inside its payload fairing, the Cygnus spacecraft for the upcoming Orbital ATK Commercial Resupply Services-6 mission departs the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Mounted atop a KAMAG transporter, Cygnus is being moved to Space Launch Complex-41 at Cape Canaveral Air Force Station where it will be mounted atop a United Launch Alliance Atlas V rocket. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22 to deliver hardware and supplies to the International Space Station.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center, former NASA astronaut Dan Tani, who now is senior director of Missions and Cargo Operations for Orbital ATK in Dulles, Virginia, participates in a press interview. In the background is the Cygnus spacecraft scheduled to deliver hardware and supplies to the International Space Station on the upcoming Orbital ATK Commercial Resupply Services-6 mission.

A technician inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida installs a memory card containing a total of 1,350,144 names as part of a commemorative plaque on the Nancy Grace Roman Space Telescope on Friday, July 17, 2026. The names, submitted by people from across the globe, including astronauts from NASA’s Artemis II and Artemis III missions, will travel with the Roman observatory to the Sun-Earth Lagrange point 2, or L2, about one million miles from Earth, where the Sun’s and Earth’s gravity balance out. Roman is named after Dr. Nancy Grace Roman, NASA’s first chief astronomer and one of the architects of the agency’s modern science program.

Technicians and engineers inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida clean and inspect the Solar Array Sun Shield (SASS) on the agency’s Nancy Grace Roman Space Telescope on Tuesday, July 14, 2026. The SASS is made up of six solar array panels, with the two center panels fixed while the four outer ones are deployed once in orbit. The Roman team will orient the SASS toward the Sun to provide power to the entire observatory and shade the telescope and instruments beneath. NASA designed this flagship mission to help astronomers explore dark matter, dark energy, and exoplanets.

Wheels are installed on NASA’s Mars Perseverance rover inside Kennedy Space Center’s Payload Hazardous Servicing Facility on March 30, 2020. Perseverance will liftoff aboard a United Launch Alliance Atlas V 541 rocket from Cape Canaveral Air Force Station in July 2020. NASA’s Launch Services Program based at Kennedy is managing the launch. The rover will land on Mars on Feb. 18, 2021.

The heat shield and back shell for the Mars 2020 rover are unboxed inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center on Dec. 13, 2019. The two integral pieces of equipment, which were flown to the Florida spaceport from Lockheed Martin Space in Denver, Colorado, will protect the rover during its passage to Mars. The Mars 2020 rover is being manufactured at NASA’s Jet Propulsion Laboratory in California. When completed, the rover will be delivered to Kennedy in mid-February, 2020, with the mission scheduled to launch in the summer of 2020.

Technicians at NASA’s Payload Hazardous Servicing Facility at Kennedy Space Center in Florida offload eight high‑efficiency particulate air (HEPA) wall modules and other ground support equipment on Monday, April 27, 2026, as part of preparations for arrival of NASA’s Nancy Grace Roman Space Telescope. Each 1,800‑pound module enhances the 40-year-old facility’s clean room systems, helping meet the telescope’s stringent cleanliness requirements during prelaunch processing. Teams are targeting launch as soon as early September aboard a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA Kennedy.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Sample Caching System Sterile Flight Model hardware is being prepared for installation on the Mars Perseverance rover on May 21, 2020. The system includes 39 sample tubes that will be inserted into the underside of the rover. Each tube is sheathed in a gold-colored cylindrical enclosure to protect it from contamination. Perseverance rover will carry 43 sample tubes in total to Mars' Jezero Crater. The Mars Perseverance rover is scheduled to launch in mid-July atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Technician dressed in clean room suits move NASA's Transiting Exoplanet Survey Satellite (TESS) on a test stand into a clean room tent inside the Payload Hazardous Servicing Facility (PHSF) at the agency's Kennedy Space Center in Florida. Inside the PHSF, the satellite will be processed and prepared for its flight. TESS is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

Wheels are installed on NASA’s Mars Perseverance rover inside Kennedy Space Center’s Payload Hazardous Servicing Facility on March 30, 2020. Perseverance will liftoff aboard a United Launch Alliance Atlas V 541 rocket from Cape Canaveral Air Force Station in July 2020. NASA’s Launch Services Program based at Kennedy is managing the launch. The rover will land on Mars on Feb. 18, 2021.

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center complete installation of a commemorative plaque on the agency’s Nancy Grace Roman Space Telescope, as photographed on Tuesday, July 28, 2026. In addition to honoring the legacy of Dr. Nancy Grace Roman, NASA’s first chief astronomer and one of the architects of the agency’s modern science program, the plaque features a memory card containing a total of 1,350,144 names submitted by people from across the globe, including astronauts from NASA’s Artemis II and Artemis III missions. The Roman observatory will travel to the Sun-Earth Lagrange point 2, or L2, about one million miles from Earth, where the Sun’s and Earth’s gravity balance out, to complete a statistical census of planetary systems in our galaxy and settle essential questions in the areas of dark energy, exoplanets, and infrared astrophysics.

The heat shield and back shell for the Mars 2020 rover are unboxed inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center on Dec. 13, 2019. The two integral pieces of equipment, which were flown to the Florida spaceport from Lockheed Martin Space in Denver, Colorado, will protect the rover during its passage to Mars. The Mars 2020 rover is being manufactured at NASA’s Jet Propulsion Laboratory in California. When completed, the rover will be delivered to Kennedy in mid-February, 2020, with the mission scheduled to launch in the summer of 2020.

Technicians hoist a five-panel solar array protected by a lid for NASA’s Europa Clipper spacecraft at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Tuesday, Feb. 27, 2024. The arrays are each 46.5 feet long (14.2 meters). With both solar arrays deployed, Europa Clipper will span more than 100 feet long, about the length of a basketball court. The solar arrays power the spacecraft so it can study Jupiter’s icy moon, Europa, which is more than five times as far from the Sun as the Earth. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians monitor the progress as a crane is used to lift the Orbital ATK Cygnus pressurized cargo module, enclosed in its payload fairing, for transfer to a KAMAG transporter. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida prepare to rotate the agency’s largest planetary mission spacecraft, Europa Clipper, to a vertical position on Tuesday, May 28, 2024, as part of prelaunch processing. Slated to launch aboard a SpaceX Falcon Heavy rocket later this year from Launch Complex 39A at Kennedy, Europa Clipper will help determine if conditions exist below the surface Jupiter’s fourth largest moon, Europa, that could support life.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, engineers and technicians encapsulate the agency’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer, or OSIRIS-REx spacecraft in its payload fairing. Targeted for liftoff at 7:05 p.m. EDT Sept. 8, 2016, OSIRIS-Rex will be the first U.S. mission to sample an asteroid, retrieve at least two ounces of surface material and return it to Earth for study. The asteroid, Bennu, may hold clues to the origin of the solar system and the source of water and organic molecules found on Earth.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the SpaceX payload fairing containing the agency's Transiting Exoplanet Survey Satellite (TESS) is secured onto a transporter. The fairing will be moved to Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is scheduled to launch on the SpaceX Falcon 9 rocket at 6:32 p.m. EDT on April 16. The satellite is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

Technicians attach the five-panel solar arrays to NASA’s Europa Clipper spacecraft inside the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Friday, Aug. 2, 2024. The huge arrays – spanning more than 100 feet when fully deployed, or about the length of a basketball court – will collect sunlight to power the spacecraft as it explores Jupiter’s icy moon, Europa, conducting science investigations to determine its potential to support life.

A KAMAG transporter with Orbital ATK's CYGNUS pressurized cargo module secured on top slowly moves from the airlock into the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Cygnus will be moved to a work stand for final propellant loading and late cargo stowage. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station on March 19, 2017. CYGNUS will deliver thousands of pounds of supplies, equipment and scientific research materials to the space station.

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida prepare to rotate the agency’s largest planetary mission spacecraft, Europa Clipper, to a vertical position on Tuesday, May 28, 2024, as part of prelaunch processing. Slated to launch aboard a SpaceX Falcon Heavy rocket later this year from Launch Complex 39A at Kennedy, Europa Clipper will help determine if conditions exist below the surface Jupiter’s fourth largest moon, Europa, that could support life.

NASA’s Nancy Grace Roman Space Telescope arrives at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Sunday, June 21, 2026, to undergo prelaunch processing. Named for NASA’s first chief astronomer and “mother of the Hubble Space Telescope,” Roman will offer a field of view over 100 times larger than Hubble’s to study up to a billion galaxies, directly image exoplanets and planet‑forming disks, and address fundamental questions about dark energy, exoplanets, and infrared astrophysics. Liftoff atop a SpaceX Falcon Heavy rocket from NASA Kennedy’s Launch Complex 39A is targeting no earlier than Sunday, Aug. 30, 2026.

The Mars 2020 rover undergoes processing inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida on Feb. 14, 2020. Initial processing took place on Feb. 13, one day after a C-17 aircraft, with the rover aboard, touched down at the Launch and Landing Facility at Kennedy. The cross-country trip began at NASA’s Jet Propulsion Laboratory, where the rover was manufactured. The mission, targeted for mid-July 2020, will launch aboard an Atlas V 541 rocket from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch. Click here for more information on the Mars 2020 rover mission.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the handling fixture is moved away from the two halves of the United Launch Alliance Atlas V payload fairing on June 18, 2020. Inside the fairing is the agency’s Mars 2020 Perseverance rover. The rover is scheduled to launch on July 20, 2020, atop the Atlas V 541 rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover’s seven instruments will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Technicians inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida install and test one of several antennas on a solar array Wednesday, March 20, 2024, for the agency’s Europa Clipper spacecraft which will study Jupiter’s icy moon Europa to determine if the planet has conditions that could support life. REASON, (Radar for Europa Assessment and Sounding: Ocean to Near-surface) instrument will use the antennas to send both High Frequency (HF) and Very High Frequency (VHF) radio waves to penetrate up to 18 miles (30 kilometers) deep and search the ocean, measure ice thickness, and study the topography, composition, and roughness of Europa’s surface. The Europa Clipper spacecraft will ship to Florida later this year from NASA’s Jet Propulsion Lab in Southern California in preparation for launch aboard a SpaceX Falcon Heavy rocket from Kennedy’s Launch Complex 39A targeting October 2024.

NASA's Transiting Exoplanet Survey Satellite (TESS) is lifted up from the base of its shipping container and will be lowered onto a test stand for processing inside the Payload Hazardous Servicing Facility (PHSF) at the agency's Kennedy Space Center in Florida. Inside the PHSF, the satellite will be processed and prepared for its flight. TESS is scheduled to launch atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station. TESS is the next step in NASA's search for planets outside our solar system, known as exoplanets. TESS is a NASA Astrophysics Explorer mission led and operated by MIT in Cambridge, Massachusetts, and managed by NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Dr. George Ricker of MIT’s Kavli Institute for Astrophysics and Space Research serves as principal investigator for the mission. Additional partners include Orbital ATK, NASA’s Ames Research Center, the Harvard-Smithsonian Center for Astrophysics and the Space Telescope Science Institute. More than a dozen universities, research institutes and observatories worldwide are participants in the mission. NASA’s Launch Services Program is responsible for launch management.

NASA’s Mars Helicopter is installed on the agency’s Mars Perseverance rover inside the Payload Hazardous Servicing Facility at Florida’s Kennedy Space Center on April 6, 2020. Perseverance safely lands on Mars, the helicopter will be released to perform the first in a series of flight tests that will take place during a period of about 30 days. The helicopter will be the first aircraft to fly on another planet. Perseverance, carrying the helicopter, will touch down on the Red Planet on Feb. 18, 2021. Liftoff aboard a United Launch Alliance Atlas V 541 rocket is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station.

The transport carrier containing the five-panel solar arrays for NASA’s Europa Clipper spacecraft arrives at the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Wednesday, Feb. 21, 2024. The arrival completes the solar array journey which began in Leiden, Netherlands, where Airbus workers assembled them before shipping them by barge to Port of Miami in Florida and transporting them by truck to Kennedy. The solar arrays will attach to the spacecraft to power it on the 1.8-billion-mile journey to study Jupiter’s icy moon, Europa. Launch on a SpaceX Falcon Heavy rocket is no earlier than October 2024.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, preparations are underway for final stowage of powered cargo in the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station targeted for March 24, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Backshell-Powered Descent Vehicle and Entry Vehicle assemblies are being attached to the Mars Perseverance rover on May 28, 2020. The cone-shaped backshell contains the parachute, and along with the mission’s heat shield, provides protection for the rover and descent stage during Martian atmospheric entry. The Mars Perseverance rover is scheduled to launch on July 20 atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Encapsulated inside its payload fairing, the Cygnus spacecraft for the upcoming Orbital ATK Commercial Resupply Services-6 mission departs the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Mounted atop a KAMAG transporter, Cygnus is being moved to Space Launch Complex-41 at Cape Canaveral Air Force Station where it will be mounted atop a United Launch Alliance Atlas V rocket. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22 to deliver hardware and supplies to the International Space Station.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, a technician adjusts the thermal blankets around the area where several Nanoracks will be installed on the exterior of the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station no earlier than March 21, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, technicians use a special mechanism to assist with late cargo installation in the Orbital ATK Cygnus pressurized cargo module. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station targeted for March 24, 2017. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the hatch is closed for the upcoming flight of a Cygnus cargo vessel. The spacecraft is scheduled for the upcoming Orbital ATK Commercial Resupply Services-6 mission to deliver hardware and supplies to the International Space Station. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22.

Technicians move cargo into the Orbital ATK CRS-6 pressurized cargo module during late stowage inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida. The spacecraft is scheduled for the upcoming Orbital ATK Commercial Resupply Services-6 mission to deliver hardware and supplies to the International Space Station. The Cygnus is scheduled to lift off atop a United Launch Alliance Atlas V rocket on March 22.

Teams inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida encapsulate the agency’s Nancy Grace Roman Space Telescope within the payload fairing on Friday, Aug. 21, 2026, ahead of mating to a SpaceX Falcon Heavy rocket. Encapsulation shields the spacecraft during rollout, ascent, and the early phases of flight. Roman will investigate dark energy and dark matter, conduct a statistical census of planetary systems, and enable a broad range of additional astrophysics research. Liftoff from Launch Complex 39A at Kennedy is targeted for no earlier than Sunday, Aug. 30, 2026.

The Mars 2020 rover undergoes processing inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida on Feb. 14, 2020. Initial processing took place on Feb. 13, one day after a C-17 aircraft, with the rover aboard, touched down at the Launch and Landing Facility at Kennedy. The cross-country trip began at NASA’s Jet Propulsion Laboratory, where the rover was manufactured. The mission, targeted for mid-July 2020, will launch aboard an Atlas V 541 rocket from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch. Click here for more information on the Mars 2020 rover mission.

Engineers perform mass properties testing on the rocket-powered descent stage of NASA’s Mars Perseverance rover at Kennedy Space Center on April 9, 2020. The testing to determine the center of gravity, or the point at which weight is evenly dispersed on all sides, was performed inside the Florida spaceport’s Payload Hazardous Servicing Facility. The descent stage will lower the rover through the thin Martian atmosphere and onto the surface on Feb. 18, 2021. Liftoff, aboard a United Launch Alliance Atlas V 541 rocket, is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch. The rover will seek signs of ancient life and collect rock and soil samples for possible return to Earth.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Backshell-Powered Descent Vehicle and Entry Vehicle assemblies are being attached to the Mars Perseverance rover on May 29, 2020. The cone-shaped backshell contains the parachute, and along with the mission’s heat shield, provides protection for the rover and descent stage during Martian atmospheric entry. The Mars Perseverance rover is scheduled to launch on July 20 atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Teams inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida encapsulate the agency’s Nancy Grace Roman Space Telescope within the payload fairing on Friday, Aug. 21, 2026, ahead of mating to a SpaceX Falcon Heavy rocket. Encapsulation shields the spacecraft during rollout, ascent, and the early phases of flight. Roman will investigate dark energy and dark matter, conduct a statistical census of planetary systems, and enable a broad range of additional astrophysics research. Liftoff from Launch Complex 39A at Kennedy is targeted for no earlier than Sunday, Aug. 30, 2026.

Functional testing of NASA’s Mars Helicopter and its cruise stage occurred in the airlock inside Kennedy Space Center’s Payload Hazardous Servicing Facility on March 10, 2020. The helicopter was tested on a stand while the cruise stage was tested on the rotation fixture. The helicopter will be attached to the Mars Perseverance rover during its mission, which is part of NASA's Mars Exploration Program. Perseverance will land on the Red Planet on Feb. 18, 2021. Liftoff aboard a United Launch Alliance Atlas V 541 rocket is targeted for mid-July from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch.

The Mars Perseverance rover is attached to its rocket-powered descent stage inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida on April 23, 2020. The rover and descent stage are the first spacecraft components to come together for launch — and they will be the last to separate when the spacecraft reaches Mars. At about 65 feet over the Martian surface, separation bolts will fire and the descent stage will lower Perseverance onto the Red Planet. Launch, aboard a United Launch Alliance Atlas V 541 rocket, is targeted between July 17 and Aug. 5 from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch.

Technicians attach the five-panel solar arrays to NASA’s Europa Clipper spacecraft inside the Payload Hazardous Servicing Facility at the agency’s Kennedy Space Center in Florida on Friday, Aug. 2, 2024. The huge arrays – spanning more than 100 feet when fully deployed, or about the length of a basketball court – will collect sunlight to power the spacecraft as it explores Jupiter’s icy moon, Europa, conducting science investigations to determine its potential to support life.

NASA’s Nancy Grace Roman Space Telescope, encapsulated in its payload fairing, travels from the Payload Hazardous Servicing Facility to the SpaceX hangar at Launch Complex 39A at NASA’s Kennedy Space Center on Tuesday, Aug. 25, 2026, ahead of mating to a SpaceX Falcon Heavy rocket. Roman’s science instruments are designed to help researchers understand dark energy, the mysterious force accelerating the universe’s expansion. The observatory also will map how galaxies form, cluster, and evolve by tracing the influence of dark matter. Liftoff from NASA Kennedy is targeted no earlier than Sunday, Aug. 30, 2026.

A KAMAG transporter with Orbital ATK's CYGNUS pressurized cargo module secured on top moves into the high bay of the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. Cygnus will be moved to a work stand for final propellant loading and late cargo stowage. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station on March 19, 2017. CYGNUS will deliver thousands of pounds of supplies, equipment and scientific research materials to the space station.

Functional testing of NASA’s Mars Helicopter and its cruise stage occurred in the airlock inside Kennedy Space Center’s Payload Hazardous Servicing Facility on March 10, 2020. The helicopter was tested on a stand while the cruise stage was tested on the rotation fixture. The helicopter will be attached to the Mars Perseverance rover during its mission, which is part of NASA's Mars Exploration Program. Perseverance will land on the Red Planet on Feb. 18, 2021. Liftoff aboard a United Launch Alliance Atlas V 541 rocket is targeted for mid-July from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Backshell-Powered Descent Vehicle and Entry Vehicle assemblies are being prepared to be attached to the Mars Perseverance rover on May 4, 2020. The cone-shaped backshell contains the parachute, and along with the mission’s heat shield, provides protection for the rover and descent stage during Martian atmospheric entry. The Mars Perseverance rover is scheduled to launch in mid-July atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida, the Orbital ATK Cygnus pressurized cargo module, enclosed in its payload fairing, is secured on a KAMAG transporter. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station. Cygnus will deliver 7,600 pounds of supplies, equipment and scientific research materials to the space station.

The heat shield and back shell for the Mars 2020 rover are unboxed inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center on Dec. 13, 2019. The two integral pieces of equipment, which were flown to the Florida spaceport from Lockheed Martin Space in Denver, Colorado, will protect the rover during its passage to Mars. The Mars 2020 rover is being manufactured at NASA’s Jet Propulsion Laboratory in California. When completed, the rover will be delivered to Kennedy in mid-February, 2020, with the mission scheduled to launch in the summer of 2020.

Inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida, the Backshell-Powered Descent Vehicle and Entry Vehicle assemblies are attached to the Mars Perseverance rover on May 6, 2020. The cone-shaped backshell contains the parachute, and along with the mission’s heat shield, provides protection for the rover and descent stage during Martian atmospheric entry. The Mars Perseverance rover is scheduled to launch in mid-July atop a United Launch Alliance Atlas V 541 rocket from Pad 41 at nearby Cape Canaveral Air Force Station. The rover is part of NASA’s Mars Exploration Program, a long-term effort of robotic exploration of the Red Planet. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The Launch Services Program at Kennedy is responsible for launch management.

Functional testing of NASA’s Mars Helicopter and its cruise stage occurred in the airlock inside Kennedy Space Center’s Payload Hazardous Servicing Facility on March 10, 2020. The helicopter was tested on a stand while the cruise stage was tested on the rotation fixture. The helicopter will be attached to the Mars Perseverance rover during its mission, which is part of NASA's Mars Exploration Program. Perseverance will land on the Red Planet on Feb. 18, 2021. Liftoff aboard a United Launch Alliance Atlas V 541 rocket is targeted for mid-July from Cape Canaveral Air Force Station. NASA’s Launch Services Program based at Kennedy is managing the launch.

Members of the news media had the opportunity to view the Orbital ATK Cygnus spacecraft before it was enclosed in its payload fairing inside the Payload Hazardous Servicing Facility at NASA's Kennedy Space Center in Florida. They also heard from representatives from Orbital ATK, United Launch Alliance and the International Space Station Office at the agency's Johnson Space Center in Houston. The Orbital ATK CRS-7 commercial resupply services mission to the International Space Station is scheduled to launch atop a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station on March 19, 2017. CYGNUS will deliver 7,600 of pounds of supplies, equipment and scientific research materials to the space station.

MSL Rover Arm Stowage

Technicians and engineers inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida use a crane to lift the agency’s Nancy Grace Roman Space Telescope to a specialized work stand Friday, June 26, 2026. Named for NASA’s first chief astronomer and “mother of the Hubble Space Telescope,” the Roman Space Telescope will offer a field of view at least 100 times larger than Hubble’s, resulting in deep, sweeping explorations of the cosmos.