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By European Space Agency
The European Space Agency (ESA) has signed a contract with Thales Alenia Space in Italy to lead European aerospace companies in building the Argonaut Lunar Descent Element, ESA’s first lunar lander.
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By NASA
On Jan. 24, 1985, space shuttle Discovery took off from NASA’s Kennedy Space Center (KSC) in Florida on STS-51C, the first space shuttle mission entirely dedicated to the Department of Defense (DOD). As such, many of the details of the flight remain classified. Discovery’s crew of Commander Thomas “T.K.” Mattingly, Pilot Loren Shriver, Mission Specialists Ellison Onizuka and James Buchli, and Payload Specialist Gary Payton deployed a classified satellite that used an Inertial Upper Stage (IUS) to reach its final geostationary orbit. The three-day mission ended with a landing at KSC. Postflight inspection of the Solid Rocket Boosters (SRBs) revealed the most significant erosion of O-ring seals seen in the shuttle program up to that time, attributed to unusually cold weather before and during launch.
The STS-51C crew of Pilot Loren Shriver, seated left, and Commander Thomas “T.K.” Mattingly; Payload Specialist Gary Payton, standing left, and Mission Specialists James Buchli and Ellison Onizuka. The STS-51C crew patch. In October 1982, NASA assigned astronauts Mattingly, Shriver, Onizuka, and Buchli as the STS-10 crew for a dedicated DOD flight aboard Challenger then scheduled for September 1983. Payton joined the crew as a payload specialist in the summer of 1983 with Keith Wright assigned as his backup. The failure of the IUS on STS-6 in April 1983 delayed the STS-10 mission, that also used the IUS, until engineers could identify and fix the cause of the problem. By September 1983, NASA had remanifested the crew and the payload on STS-41F with a July 1984 launch, that changed to STS-41E by November 1983. Additional delays in fixing the IUS delayed the mission yet again, by June 1984 redesignated as STS-51C and slated for December 1984 aboard Challenger.
STS-51C marked the third spaceflight for Mattingly, selected in 1966 as part of NASA’s fifth group of astronauts. He served on the prime crew for Apollo 13 until exposure to German measles forced his last-minute replacement by his backup. He then flew on Apollo 16 and STS-4. For Shriver, Onizuka, and Buchli, all three selected as astronauts in the class of 1978, STS-51C marked their first trip into space. The U.S. Air Force selected Payton and Wright in August 1979 in its first class of Manned Spaceflight Engineers, and STS-51C marked Payton’s first and only space mission.
In November 1984, NASA decided to delay STS-51C from December 1984 to January 1985 and swap orbiters from Challenger to Discovery. Postflight inspections following Challenger’s STS-41G mission in October 1984 revealed degradation of the bonding materials holding thermal protection system tiles onto the orbiter, requiring the replacement of 4,000 tiles. The time required to complete the work precluded a December launch. Tests conducted on Discovery prior to its November STS-51A mission revealed the bonding material to be sound.
Space shuttle Discovery rolls out to Launch Pad 39A. The STS-51C crew poses during launch pad evacuation drills associated with the Terminal Countdown Demonstration Test. The STS-51C crew exits crew quarters for the ride to Launch Pad 39A. On Jan. 5, 1985, Discovery rolled out from KSC’s Vehicle Assembly Building, where workers mated it with its External Tank (ET) and SRBs, to Launch Pad 39A. There, engineers conducted the Terminal Countdown Demonstration Test, essentially a dress rehearsal for the actual countdown, on Jan. 6-7, with the crew participating in the final few hours much as they would on launch day. The astronauts returned to KSC on Jan. 20 to prepare for the planned launch on Jan. 23. The day before, NASA managers decided to delay the launch by one day due to unseasonably cold weather, with concern about sub-freezing temperatures causing ice to form on the ET and possibly coming loose during ascent and damaging the vehicle. The DOD had requested that NASA keep the actual launch time secret until T minus nine minutes, with most of the countdown taking place hidden from public view.
Liftoff of space shuttle Discovery on STS-51C. Liftoff of Discovery on its third mission, STS-51C, came at 2:50 p.m. EST on Jan. 24, beginning the 15th space shuttle flight. Eight and a half minutes later, Discovery and its five-man crew had reached orbit. And, at the DOD customer’s request, all public coverage of the mission ended. Although NASA could not reveal the spacecraft’s orbital parameters, trade publications calculated that Discovery first entered an elliptical orbit, circularized over the next few revolutions, prior to Onizuka deploying the IUS and payload combination on the seventh orbit. Neither NASA nor the DOD have released any imagery of the deployment or even of the payload bay, with only a limited number of in-cabin and Earth observation photographs made public.
STS-51C Commander Thomas “T.K.” Mattingly films the Earth from Discovery’s overhead flight deck window. STS-51C crew members Loren Shriver, left, Ellison Onizuka, and James Buchli on Discovery’s flight deck. STS-51C Payload Specialist Gary Payton on Discovery’s flight deck. Sunlight streams through Earth’s upper atmosphere, with Discovery’s tail and Orbital Maneuvering Engine pods outlined by sunlight. The Pacific coast of Guatemala and southern Mexico. New Orleans and the Mississippi River delta. Discovery touches down at NASA’s Kennedy Space Center in Florida. The STS-51C astronauts are greeted by NASA officials as they exit Discovery. To maintain the mission’s secrecy, NASA could reveal the touchdown time only 16 hours prior to the event. On Jan. 27, Mattingly and Shriver brought Discovery to a smooth landing at KSC’s Shuttle Landing Facility after a flight of three days one hour 33 minutes, the shortest space shuttle mission except for the first two orbital test flights. The astronauts orbited the Earth 49 times. About an hour after touchdown, the astronaut crew exited Discovery and boarded the Astrovan for the ride back to crew quarters. Neither NASA management nor the astronauts held a post mission press conference. The U.S. Air Force announced only that the “IUS aboard STS-51C was deployed from the shuttle Discovery and successfully met its mission objectives.” Later in the day, ground crews towed Discovery to the Orbiter Processing Facility to begin preparing it for its next planned mission, STS-51D in March.
Postscript
Following the recovery of SRBs after each shuttle mission, engineers conducted detailed inspections before clearing them for reuse. After STS-51C, inspections of the critical O-ring seals that prevented hot gases from escaping from the SRB field joints revealed significant erosion and “blow-by” between the primary and secondary O-rings. Both left and right hand SRBs showed this erosion, the most significant of the program up to that time. Importantly, these O-rings experienced weather colder than any previous shuttle mission, with overnight ambient temperatures in the teens and twenties. Even at launch time, the O-rings had reached only 60 degrees. Engineers believed that these cold temperatures made the O-rings brittle and more susceptible to erosion. One year later, space shuttle Challenger launched after similarly cold overnight temperatures, with O-rings at 57 degrees at launch time. The Rogers Commission report laid the blame of the STS-51L accident on the failure of O-rings that allowed super-hot gases to escape from the SRB and impinge on the hydrogen tank in the ET, resulting in the explosion that destroyed the orbiter and claimed the lives of seven astronauts. The commission also faulted NASA’s safety culture for not adequately addressing the issue of O-ring erosion, a phenomenon first observed on STS-2 and to varying degrees on several subsequent missions.
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By NASA
On Jan. 19, 1965, Gemini 2 successfully completed the second of two uncrewed test flights of the spacecraft and its Titan II booster, clearing the way for the first crewed mission. The 18-minute suborbital mission achieved the primary goals of flight qualifying the Gemini spacecraft, especially its heat shield during a stressful reentry. Recovery forces retrieved the capsule following its splashdown, allowing engineers to evaluate how its systems fared during the flight. The success of Gemini 2 enabled the first crewed mission to fly two months later, beginning a series of 10 flights over the following 20 months. The astronauts who flew these missions demonstrated the rendezvous and docking techniques necessary to implement the Lunar Orbit Rendezvous method NASA chose for the Moon landing mission. They also proved that astronauts could work outside their spacecraft during spacewalks and that spacecraft and astronauts could function for at least eight days, the minimum time for a roundtrip lunar mission. The Gemini program proved critical to fulfill 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.
Cutaway diagram of the Gemini spacecraft. Workers at Launch Pad 19 lift Gemini 2 to mate it with its Titan II rocket. At Pad 19, engineers verify the flight simulators inside Gemini 2. Following the success of Gemini 1 in April 1964, NASA had hoped to fly the second mission before the end of the year and the first crewed mission by January 1965. The two stages of the Titan II rocket arrived at Cape Kennedy from the Martin Marietta factory in Baltimore on July 11, and workers erected it on Launch Pad 19 five days later. A lightning strike at the pad on Aug. 17 invalidated all previous testing and required replacement of some pad equipment. A series of three hurricanes in August and September forced workers to partially or totally unstack the vehicle before stacking it for the final time on Sept. 14. The Gemini 2 spacecraft arrived at Cape Kennedy from its builder, the McDonnell Company in St. Louis, on Sept. 21, and workers hoisted it to the top of the Titan II on Oct. 18. Technical issues delayed the spacecraft’s physical mating to the rocket until Nov. 5. These accumulated delays pushed the launch date back to Dec. 9.
The launch abort on Dec. 9, 1964. Liftoff of Gemini 2 from Launch Pad 19 on Jan. 19, 1965. Engineers in the blockhouse monitor the progress of the Titan II during the ascent. Fueling of the rocket began late on Dec. 8, and following three brief holds in the countdown, the Titan’s two first stage engines ignited at 11:41 a.m. EST on Dec. 9. and promptly shut down one second later. Engineers later determined that a cracked valve resulted in loss of hydraulic pressure, causing the malfunction detection system to switch to its backup mode, forcing a shutdown of the engines. Repairs meant a delay into the new year. On Jan. 19, 1965, following a mostly smooth countdown, Gemini 2 lifted off from Pad 19 at 9:04 a.m. EST.
The Mission Control Center (MCC) at NASA’s Kennedy Space Center in Florida. In the MCC, astronauts Eugene Cernan, left, Walter Schirra, Gordon Cooper, Donald “Deke” Slayton, and Virgil “Gus” Grissom monitor the Gemini 2 flight. In the Gemini Mission Control Center at NASA’s Kennedy Space Center in Florida, Flight Director Christopher C. Kraft led a team of flight controllers that monitored all aspects of the flight. At the Manned Spacecraft Center (MSC), now NASA’s Johnson Space Center in Houston, a team of controllers led by Flight Director John Hodge passively monitored the flight from the newly built Mission Control Center. They would act as observers for this flight and Gemini 3, the first crewed mission, before taking over full control with Gemini IV, and control all subsequent American human spaceflights. The Titan rocket’s two stages placed Gemini 2 into a suborbital trajectory, reaching a maximum altitude of 98.9 miles, with the vehicle attaining a maximum velocity of 16,709 miles per hour. Within a minute after separating from the Titan’s second stage, Gemini 2 executed a maneuver to orient its heat shield in the direction of flight to prepare for reentry. Flight simulators installed where the astronauts normally would sit controlled the maneuvers. About seven minutes after liftoff, Gemini 2 jettisoned its equipment section, followed by firing of the retrorockets, and then separation of the retrorocket section, exposing the spacecraft’s heat shield.
View from a camera mounted on a cockpit window during Gemini 2’s reentry. View from the cockpit window during Gemini 2’s descent on its parachute. Gemini 2 then began its reentry, the heat shield protecting the spacecraft from the 2,000-degree heat generated by friction with the Earth’s upper atmosphere. A pilot parachute pulled away the rendezvous and recovery section. At 10,000 feet, the main parachute deployed, and Gemini 2 descended to a splashdown 2,127 miles from its launch pad, after a flight of 18 minutes 16 seconds. The splashdown took place in the Atlantic Ocean about 800 miles east of San Juan, Puerto Rico, and 25 miles from the prime recovery ship, the U.S.S. Lake Champlain (CVS-39).
A U.S. Navy helicopter hovers over the Gemini 2 capsule following its splashdown as a diver jumps into the water. Sailors hoist Gemini 2 aboard the U.S.S. Lake Champlain. U.S. Navy helicopters delivered divers to the splashdown area, who installed a flotation collar around the spacecraft. The Lake Champlain pulled alongside, and sailors hoisted the capsule onto the carrier, securing it on deck one hour forty minutes after liftoff. The spacecraft appeared to be in good condition and arrived back at Cape Kennedy on Jan. 22 for a thorough inspection. As an added bonus, sailors recovered the rendezvous and recovery section. Astronaut Virgil “Gus” Grissom, whom along with John Young NASA had selected to fly the first crewed Gemini mission, said after the splashdown, “We now see the road clear to our flight, and we’re looking forward to it.” Flight Director Kraft called it “very successful.” Gemini Program Manager Charles Matthews predicted the first crewed mission could occur within three months. Gemini 3 actually launched on March 23.
Enjoy this NASA video of the Gemini 2 mission.
Postscript
The Gemini-B capsule and a Manned Orbiting Laboratory (MOL) mockup atop a Titan-IIIC rocket in 1966. The flown Gemini-B capsule on display at the Cape Canaveral Space Force Museum in Florida. Former MOL and NASA astronaut Robert Crippen stands beside the only flown Gemini-B capsule – note the hatch in the heat shield at top. Gemini 2 not only cleared the way for the first crewed Gemini mission and the rest of the program, it also took on a second life as a test vehicle for the U.S. Air Force’s Manned Orbiting Laboratory (MOL). The Air Force modified the spacecraft, including cutting a hatch through its heat shield, renamed it Gemini-B, and launched it on Nov. 3, 1966, atop a Titan IIIC rocket. The test flight successfully demonstrated the hatch in the heat shield design during the capsule’s reentry after a 33-minute suborbital flight. Recovery forces retrieved the Gemini-B capsule in the South Atlantic Ocean and returned it to the Air Force for postflight inspection. This marked the only repeat flight of an American spacecraft intended for human spaceflight until the advent of the space shuttle. Visitors can view Gemini 2/Gemini-B on display at the Cape Canaveral Space Force Museum.
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By NASA
Learn Home First NASA Neurodiversity… Heliophysics Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 2 min read
First NASA Neurodiversity Network Intern to Present at the American Geophysical Union Annual Conference
The NASA Science Activation Program’s NASA’s Neurodiversity Network (N3) project sponsors a summer internship program for high school students, in which learners on the autism spectrum are matched with NASA Subject Matter Experts. N3 intern Lillian Hall and mentor Dr. Juan Carlos Martinez Oliveros presented Lilly’s summer research project on December 9 at the 2024 American Geophysical Union conference in Washington, D.C. Their poster, entitled “Eclipse Megamovie: Image Processing”, represents the first time an N3 intern has co-authored a presentation at the prestigious AGU conference.
The NASA Citizen Science project, Eclipse Megamovie, is leveraging the power of citizen science to construct a high-resolution time-lapse of the Sun’s corona during the April 8, 2024 total solar eclipse. By coordinating the work of hundreds of participants along the path of totality, a substantial dataset of images was obtained. The goal of the project is to unveil dynamic transformations in the Sun’s atmosphere that are only visible during a total solar eclipse.
To process the vast quantity of imaging data collected, Lilly assisted Dr. Martinez Oliveros and other researchers in implementing a robust pipeline involving image calibration, registration, and co-location. Image registration techniques aligned the solar features across different frames, compensating for Earth’s rotation and camera movement. Finally, they used imaging techniques to enhance the signal-to-noise ratio, revealing subtle coronal structures and possible dynamics. This comprehensive data processing methodology has enabled the extraction of meaningful scientific information from the Eclipse Megamovie dataset.
Here’s what Lilly had to say: “Working with N3 has given me a chance to use my neurodiverse perspective to make an impact on NASA research. Through the processes of my project and the opportunity to share it at the American Geophysical Union conference, I am so grateful to have found my spot in the planetary science field I dream to continue researching in the future.”
Learn more about NASA Citizen Science and how you can participate (participation does not require citizenship in any particular country): https://science.nasa.gov/citizen-science/
The N3 project is supported by NASA under cooperative agreement award number 80NSSC21M0004 and is part of NASA’s Science Activation Portfolio. Learn more about how Science Activation connects NASA science experts, real content, and experiences with community leaders to do science in ways that activate minds and promote deeper understanding of our world and beyond: https://science.nasa.gov/learn
https://www.agu.org/annual-meeting/schedule
Lilly Hall with her Eclipse Megamovie Image Processing poster. Kristen Hall Share
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By NASA
As part of NASA’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, Firefly Aerospace’s Blue Ghost Mission One lander will carry 10 NASA science and technology instruments to the Moon’s near side. Credit: Firefly Aerospace Carrying NASA science and technology to the Moon as part of the agency’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, Firefly Aerospace’s Blue Ghost Mission 1 is targeting launch Wednesday, Jan. 15. The mission will lift off on a SpaceX’s Falcon 9 rocket from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.
Live launch coverage will air on NASA+ with prelaunch events starting Monday, Jan. 13. Learn how to watch NASA content through a variety of platforms, including social media. Follow all events at:
https://www.nasa.gov/live/
After the launch, Firefly’s Blue Ghost lander will spend approximately 45 days in transit to the Moon before landing on the lunar surface in early March. The lander will carry 10 NASA science investigations to further our understanding of the Moon’s environment and help prepare for future human missions to the lunar surface, as part of the agency’s Moon to Mars exploration approach.
Science investigations on this flight aim to test and demonstrate lunar subsurface drilling technology, regolith sample collection capabilities, global navigation satellite system abilities, radiation tolerant computing, and lunar dust mitigation methods. The data captured could benefit humans on Earth by providing insights into how space weather and other cosmic forces impact Earth.
The deadline has passed for media accreditation for in-person coverage of this launch. The agency’s media accreditation policy is available online. More information about media accreditation is available by emailing: ksc-media-accreditat@mail.nasa.gov.
Full coverage of this mission is as follows (all times Eastern):
Monday, Jan. 13
2:30 p.m. – Lunar science media teleconference with the following participants:
Chris Culbert, CLPS program manager, NASA’s Johnson Space Center Maria Banks, CLPS project scientist, NASA Johnson Audio of the teleconference will stream live on the agency’s website:
https://www.nasa.gov/live/
Media may ask questions via phone only. For the dial-in number and passcode, please contact the Kennedy newsroom no later than 1:30 p.m. EST Jan. 13, at: ksc-newsroom@mail.nasa.gov.
Tuesday, Jan. 14
1 p.m. – Lunar delivery readiness media teleconference with the following participants:
Nicola Fox, associate administrator, Science Mission Directorate at NASA Headquarters Jason Kim, CEO, Firefly Aerospace Julianna Scheiman, director, NASA science missions, SpaceX Mark Burger, launch weather officer, Cape Canaveral Space Force Station’s 45th Weather Squadron Audio of the teleconference will stream live on the agency’s website:
https://www.nasa.gov/live/
Media may ask questions via phone only. For the dial-in number and passcode, please contact the Kennedy newsroom no later than 12 p.m. EST on Tuesday, Jan. 14, at: ksc-newsroom@mail.nasa.gov.
Wednesday, Jan. 15
12:30 a.m. – Launch coverage begins on NASA+ and the agency’s website.
1:11 a.m. – Launch
NASA Launch Coverage
Audio only of the media teleconferences and launch coverage will be carried on the NASA “V” circuits, which may be accessed by dialing 321-867-1220, -1240, or -7135. On launch day, the full mission broadcast can be heard on -1220 and -1240, while the countdown net only can be heard on -7135 beginning approximately one hour before the mission broadcast begins.
On launch day, a “tech feed” of the launch without NASA TV commentary will be carried on the NASA TV media channel.
NASA Website Launch Coverage
Launch day coverage of the mission will be available on the NASA website. Coverage will include live streaming and blog updates beginning no earlier than 12:30 a.m. EST Jan. 15, as the countdown milestones occur. On-demand streaming video and photos of the launch will be available shortly after liftoff. For questions about countdown coverage, contact the Kennedy newsroom at 321-867-2468. Follow countdown coverage on our launch blog for updates.
NASA Virtual Guests for Launch
Members of the public can register to attend this launch virtually. Registrants will receive mission updates and activities by email, including curated mission resources, schedule updates, and a virtual guest passport stamp following a successful launch. Print your passport and get ready to add your stamp!
Watch, Engage on Social Media
Let people know you’re following the mission on X, Facebook, and Instagram by using the hashtag #Artemis. You can also stay connected by following and tagging these accounts:
X: @NASA, @NASAKennedy, @NASAArtemis, @NASAMoon
Facebook: NASA, NASAKennedy, NASAArtemis
Instagram: @NASA, @NASAKennedy, @NASAArtemis
Coverage en Español
Did you know NASA has a Spanish section called NASA en español? Check out NASA en español on X, Instagram, Facebook, and YouTube for additional mission coverage.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitar entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
For media inquiries relating to the launch provider, please contact SpaceX’s communications department by emailing: media@spacex.com. For media inquiries relating to the CLPS provider, Firefly Aerospace, please contact Firefly’s communication department by emailing: press@fireflyspace.com.
For more information about the agency’s CLPS initiative, see:
https://www.nasa.gov/clps
-end-
Karen Fox / Alise Fisher
Headquarters, Washington
301-286-6284 / 202-358-1275
karen.c.fox@nasa.gov / alise.m.fisher@nasa.gov
Natalia Riusech
Johnson Space Center, Houston
281-483-5111
nataila.s.riusech@nasa.gov
Antonia Jaramillo
Kennedy Space Center, Florida
321-501-8425
antonia.jaramillobotero@nasa.gov
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