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By NASA
The SpaceX Falcon 9 rocket carrying the Dragon spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Nov. 4, 2024, on the company’s 31st commercial resupply services mission for the agency to the International Space Station.Credit: SpaceX Media accreditation is open for the next launch to deliver NASA science investigations, supplies, and equipment to the International Space Station.
NASA and SpaceX are targeting no earlier than Monday, April 21, to launch the SpaceX Dragon spacecraft on the company’s Falcon 9 rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida. This launch is the 32nd SpaceX commercial resupply services mission to the orbital laboratory for the agency.
Credentialing to cover prelaunch and launch activities is open to U.S. media. The application deadline for U.S. citizens is 11:59 p.m., EDT, Friday, April 4. All accreditation requests must be submitted online at:
https://media.ksc.nasa.gov
Credentialed media will receive a confirmation email after approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA Kennedy’s newsroom at: 321-867-2468.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitor entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
Each resupply mission to the station delivers scientific investigations in the areas of biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, significantly increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.
Along with food and essential equipment for the crew, Dragon is delivering a variety of experiments, including a demonstration of refined maneuvers for free-floating robots. Dragon also carries an enhanced air quality monitoring system that could protect crew members on exploration missions to the Moon and Mars, and two atomic clocks to examine fundamental physics concepts, such as relativity, and test worldwide synchronization of precision timepieces.
Astronauts have occupied the space station continuously since November 2000. In that time, 283 people from 23 countries have visited the orbital outpost. The space station is a springboard to NASA’s next great leap in exploration, including future missions to the Moon under the Artemis campaign, and human exploration of Mars.
Learn more about NASA’s commercial resupply missions at:
https://www.nasa.gov/station
-end-
Julian Coltre / Josh Finch
Headquarters, Washington
202-358-1100
julian.n.coltre@nasa.gov / joshua.a.finch@nasa.gov
Stephanie Plucinsky / Steven Siceloff
Kennedy Space Center, Florida
321-876-2468
stephanie.n.plucinsky@nasa.gov / steven.p.siceloff@nasa.gov
Sandra Jones
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov
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Last Updated Mar 24, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
International Space Station (ISS) Humans in Space ISS Research Johnson Space Center View the full article
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By NASA
On March 23, 1965, the United States launched the Gemini III spacecraft with astronauts Virgil “Gus” Grissom and John Young aboard, America’s first two-person spaceflight. Grissom earned the honor as the first person to enter space twice and Young as the first member of the second group of astronauts to fly in space. During their three-orbit flight they carried out the first orbital maneuvers of a crewed spacecraft, a critical step toward demonstrating rendezvous and docking. Grissom and Young brought Gemini 3 to a safe splashdown in the Atlantic Ocean. Their ground-breaking mission led the way to nine more successful Gemini missions in less than two years to demonstrate the techniques required for a Moon landing. Gemini 3 marked the last spaceflight controlled from Cape Kennedy, that function shifting permanently to a new facility in Houston.
In one of the first uses of the auditorium at the Manned Spacecraft Center, now NASA’s Johnson Space Center in Houston, managers announce the prime and backup Gemini III crews. NASA NASA astronauts Virgil “Gus” Grissom and John Young, the Gemini III prime crew. NASA Grissom, foreground, and Young in their capsule prior to launch.NASA On April 13, 1964, just five days after the uncrewed Gemini I mission, in the newly open auditorium at the Manned Spacecraft Center, now NASA’s Johnson Space Center in Houston, Director Robert Gilruth introduced the Gemini III crew to the press. NASA assigned Mercury 4 veteran Grissom and Group 2 astronaut Young as the prime crew, with Mercury 8 veteran Walter Schirra and Group 2 astronaut Thomas Stafford serving as their backups. The primary goals of Project Gemini included proving the techniques required for the Apollo Program to fulfil President John F. Kennedy’s goal of landing a man on the Moon and returning him safely to Earth before the end of the 1960s. Demonstrating rendezvous and docking between two spacecraft ranked as a high priority for Project Gemini.
Liftoff of Gemini III.NASA The uncrewed Gemini I and II missions validated the spacecraft’s design, reliability, and heat shield, clearing the way to launch Gemini III with a crew. On March 23, 1965, after donning their new Gemini spacesuits, Grissom and Young rode the transfer van to Launch Pad 19 at Cape Kennedy in Florida. They rode the elevator to their Gemini spacecraft atop its Titan II rocket where technicians assisted them in climbing into the capsule. At 9:24 a.m. EST, the Titan’s first stage engines ignited, and Gemini III rose from the launch pad.
The Mission Control Center at Cape Kennedy in Florida during Gemini III, controlling a human spaceflight for the final time.NASA The Mission Control Center at the Manned Spacecraft Center, now NASA’s Johnson Space Center in Houston, monitoring the Gemini III mission.NASA Five and a half minutes after launch, the Titan II’s second stage engine cut off and the spacecraft separated to begin its orbital journey. Grissom became the first human to enter space a second time. While engineers monitored the countdown from the Launch Pad 19 blockhouse, once in orbit flight controllers in the Mission Control Center at the Cape took over. Controllers in the new Mission Control Center at the Manned Spacecraft Center, now the Johnson Space Center in Houston, staffed consoles and monitored the mission in a backup capacity. Beginning with Gemini IV, control of all American human spaceflights shifted permanently to the Houston facility.
Gemini III entered an orbit of 100 miles by 139 miles above the Earth. Near the end of the first orbit, while passing over Texas, Grissom and Young fired their spacecraft’s thrusters for one minute, 14 seconds. “They appear to be firing good,” said Young, confirming the success of the maneuver. The change in velocity adjusted their orbit to 97 miles by 105 miles. A second burn 45 minutes later altered the orbital inclination by 0.02 degrees. Another task for the crew involved testing new food and packaging developed for Gemini. As an off-the-menu item, Young had stowed a corned beef on rye sandwich in his suit pocket before flight, and both he and Grissom took a bite before stowing it away, concerned about crumbs from the sandwich floating free in the cabin.
Shortly after splashdown, Gemini III astronaut Virgil “Gus” Grissom exits the spacecraft as crewmate John Young waits in the life raft. NASA Sailors hoist the Gemini III spacecraft aboard the prime recovery ship U.S.S. Intrepid.NASA Young, left, and Grissom stand with their spacecraft aboard Intrepid. NASA Near the end of their third revolution, Grissom and Young prepared for the retrofire burn to bring them out of orbit. They oriented Gemini III with its blunt end facing forward and completed a final orbital maneuver to lower the low point of their orbit to 45 miles, ensuring reentry even if the retrorockets failed to fire. They jettisoned the rearmost adapter section, exposing the retrorockets that fired successfully, bringing the spacecraft out of orbit. They jettisoned the retrograde section, exposing Gemini’s heat shield. Minutes later, they encountered the upper layers of Earth’s atmosphere at 400,000 feet, and he buildup of ionized gases caused a temporary loss of communication between the spacecraft and Mission Control. At 50,000 feet, Grissom deployed the drogue parachute to stabilize and slow the spacecraft, followed by the main parachute at 10,600 feet. Splashdown occurred in the Atlantic Ocean near Grand Turk Island, about 52 miles short of the planned point, after a flight of 4 hours, 52 minutes, 31 seconds.
Gemini III astronauts Virgil “Gus” Grissom, left, and John Young upon their return to Cape Kennedy in Florida. NASA Grissom and Young at the postflight press conference. NASA The welcome home ceremony for Grissom and Young at the Manned Spacecraft Center, now NASA’s Johnson Space Center in Houston.NASA A helicopter recovered Grissom and Young and delivered them to the deck of the U.S.S. Intrepid, arriving there one hour and 12 minutes after splashdown. On board the carrier, the astronauts received a medical checkup and a telephone call from President Lyndon B. Johnson. The ship sailed to pick up the spacecraft and sailors hoisted it aboard less than three hours after landing. The day after splashdown, Grissom and Young flew to Cape Kennedy for debriefings, a continuation of the medical examinations begun on the carrier, and a press conference. Following visits to the White House, New York, and Chicago, the astronauts returned home to Houston on March 31. The next day, Gilruth welcomed them back to the Manned Spacecraft Center, where in front of the main administration building, workers raised an American flag that Grissom and Young had carried on their mission. That flag flew during every subsequent Gemini mission.
During the Gemini III welcome home ceremony in front of the main administration building at the Manned Spacecraft Center, now NASA’s Johnson Space Center in Houston, workers raise an American flag that the astronauts had carried on their mission. NASA
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By NASA
4 min read
NASA to Launch Three Rockets from Alaska in Single Aurora Experiment
Three NASA-funded rockets are set to launch from Poker Flat Research Range in Fairbanks, Alaska, in an experiment that seeks to reveal how auroral substorms affect the behavior and composition of Earth’s far upper atmosphere.
The experiment’s outcome could upend a long-held theory about the aurora’s interaction with the thermosphere. It may also improve space weather forecasting, critical as the world becomes increasingly reliant on satellite-based devices such as GPS units in everyday life.
Colorful ribbons of aurora sway with geomagnetic activity above the launch pads of Poker Flat Research Range. NASA/Rachel Lense The University of Alaska Fairbanks (UAF) Geophysical Institute owns Poker Flat, located 20 miles north of Fairbanks, and operates it under a contract with NASA’s Wallops Flight Facility in Virginia, which is part of NASA’s Goddard Space Flight Center in Greenbelt, Maryland.
The experiment, titled Auroral Waves Excited by Substorm Onset Magnetic Events, or AWESOME, features one four-stage rocket and two two-stage rockets all launching in an approximately three-hour period.
Colorful vapor tracers from the largest of the three rockets should be visible across much of northern Alaska. The launch window is March 24 through April 6.
The mission, led by Mark Conde, a space physics professor at UAF, involves about a dozen UAF graduate student researchers at several ground monitoring sites in Alaska at Utqiagvik, Kaktovik, Toolik Lake, Eagle, and Venetie, as well as Poker Flat. NASA delivers, assembles, tests, and launches the rockets.
“Our experiment asks the question, when the aurora goes berserk and dumps a bunch of heat in the atmosphere, how much of that heat is spent transporting the air upward in a continuous convective plume and how much of that heat results in not only vertical but also horizontal oscillations in the atmosphere?” Conde said.
Confirming which process is dominant will reveal the breadth of the mixing and the related changes in the thin air’s characteristics.
“Change in composition of the atmosphere has consequences,” Conde said. “And we need to know the extent of those consequences.”
Most of the thermosphere, which reaches from about 50 to 350 miles above the surface, is what scientists call “convectively stable.” That means minimal vertical motion of air, because the warmer air is already at the top, due to absorption of solar radiation.
A technician with NASA’s Wallops Flight Facility sounding rocket office works on one of the payload sections of the rocket that will launch for the AWESOME campaign. NASA/Lee Wingfield When auroral substorms inject energy and momentum into the middle and lower thermosphere (roughly 60 to 125 miles up), it upsets that stability. That leads to one prevailing theory — that the substorms’ heat is what causes the vertical-motion churn of the thermosphere.
Conde believes instead that acoustic-buoyancy waves are the dominant mixing force and that vertical convection has a much lesser role. Because acoustic-buoyancy waves travel vertically and horizontally from where the aurora hits, the aurora-caused atmospheric changes could be occurring over a much broader area than currently believed.
Better prediction of impacts from those changes is the AWESOME mission’s practical goal.
“I believe our experiment will lead to a simpler and more accurate method of space weather prediction,” Conde said.
Two two-stage, 42-foot Terrier-Improved Malemute rockets are planned to respectively launch about 15 minutes and an hour after an auroral substorm begins. A four-stage, 70-foot Black Brant XII rocket is planned to launch about five minutes after the second rocket.
The first two rockets will release tracers at altitudes of 50 and 110 miles to detect wind movement and wave oscillations. The third rocket will release tracers at five altitudes from 68 to 155 miles.
Pink, blue, and white vapor traces should be visible from the third rocket for 10 to 20 minutes. Launches must occur in the dawn hours, with sunlight hitting the upper altitudes to activate the vapor tracers from the first rocket but darkness at the surface so ground cameras can photograph the tracers’ response to air movement.
By Rod Boyce
University of Alaska Fairbanks Geophysical Institute
NASA Media Contact: Sarah Frazier
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Last Updated Mar 21, 2025 Related Terms
Sounding Rockets Goddard Space Flight Center Heliophysics Heliophysics Division Heliophysics Research Program Science & Research Science Mission Directorate Sounding Rockets Program Uncategorized Wallops Flight Facility Explore More
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By NASA
Technicians with NASA and Lockheed Martin fitted three spacecraft adapter jettison fairing panels onto the service module of the agency’s Orion’s spacecraft. The operation completed on Wednesday, March 19, 2025, inside the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida.
The European-built service module is the powerhouse that will propel the spacecraft to the Moon. Its four solar array wings which were installed to its exterior in early March. The latest addition of fairing panels on Orion’s service module will protect the solar array wings, shielding them from the heat, wind, and acoustics of launch and ascent, and also help redistribute the load between Orion and the massive thrust of the SLS (Space Launch System) rocket during liftoff and ascent. Once the spacecraft is above the atmosphere, the three fairing panels will separate from the service module, allowing the wings to unfurl.
In addition to power, the service module will provide propulsion and life support including thermal control, air, and water for the Artemis II test flight, NASA’s first mission with crew under the Artemis campaign that will send NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, on a 10-day journey around the Moon.
Through the Artemis campaign, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.
Image credit: NASA/Glenn Benson
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By NASA
4 Min Read 3D Printing: Saving Weight and Space at Launch
The first metal part 3D printed in space. Credits: ESA Science in Space March 2025
Additive manufacturing, also known as 3D printing, is regularly used on the ground to quickly produce a variety of devices. Adapting this process for space could let crew members create tools and parts for maintenance and repair of equipment on the spot, rather than trying to bring along every item that might be needed.
The ability to manufacture things in space is especially important in planning for missions to the Moon and Mars because additional supplies cannot quickly be sent from Earth and cargo capacity is limited.
Research on the International Space Station is helping to develop the capability to address multiple needs using 3D printing.
NASA astronaut Jeanette Epps configures the Metal 3D Printer to produce experimental samples from stainless steel.NASA Metal 3D Printer, a current investigation from ESA (European Space Agency), tests 3D printing of small metal parts in microgravity. Results could improve understanding of the function, performance, and operations of 3D printing in space with metal, as well as the quality, strength, and characteristics of printed parts. This work also could benefit applications on Earth that use metal, such as the automotive, aeronautical, and maritime industries.
Printing with plastic
NASA Astronaut Butch Wilmore holds a ratchet wrench created with the 3D Printing in Zero-G printer.NASA 3D Printing in Zero-G sent the first 3D printer, developed by NASA’s Marshall Space Flight Center and Redwire (formerly Made in Space), to the space station in 2014. The printer used a process that feeds a continuous thread of plastic through a heated extruder and onto a tray layer by layer to create an object. The investigation produced more than a dozen parts, including a ratchet wrench, showing that researchers could send a design from the ground to the system on the station more than 200 miles above.
Comparing the parts made in space with those made on the ground showed that microgravity had no significant effect on the process.
Redwire then developed the Additive Manufacturing Facility (AMF), sent to the station in 2015. Researchers evaluated its mechanical performance and found improvements in tension strength and flexibility compared to the earlier demonstration, helping to further the technology for this type of manufacturing on Earth and in space.
In 2015 and 2016, Portable On Board 3D Printer tested an automated printer developed by the Italian Space Agency to produce plastic objects in space. The investigation provided insight into how the material behaves in microgravity, which could support development of European additive manufacturing technology for use in space.
Printing with other materials
NASA astronaut Anne McClain installs the Refabricator in Feb. 2019.NASA Another approach is recycling plastic – for example, turning a used 3D-printed wrench into a spoon and creating items from the plastic bags and packing foam needed to send supplies to space. This technology could help reduce the amount of raw material at launch and cut down on the volume of waste that must be disposed of on long journeys. The Refabricator, a machine created by Tethers Unlimited Inc, tested this approach and successfully manufactured its first object. Some issues occurred in the bonding process, likely caused by microgravity, but assessment of the material could help determine whether there are limits to how many times plastic can be re-used. Ultimately, researchers plan to create a database of parts that can be manufactured using the space station’s capabilities.
The Redwire Regolith Print facility before launch to the space station.Redwire Space Redwire Regolith Print (RRP) tested another kind of feedstock for 3D manufacturing in orbit, a simulated version of regolith, the dust present on the surface of the Moon and other planetary bodies. Results could lead to development of technology for using regolith to construct habitats and other structures rather than bringing raw materials from Earth.
The space station also has hosted studies of a form of 3D printing called biological printing or bioprinting. This process uses living cells, proteins, and nutrients as raw materials to potentially produce human tissues for treating injury and disease, which could benefit future crews and patients on Earth.
Other manufacturing techniques tested on the orbiting lab include producing optical fibers and growing crystals for synthesizing pharmaceuticals and fabricating semiconductors.
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