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30 Years Ago: STS-63, First Shuttle and Mir Rendezvous Mission
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By NASA
NASA astronaut Don Pettit aboard the International Space Station. (Credit: NASA) For the first time, NASA is hosting a live Twitch event from about 250 miles off the Earth aboard the International Space Station, bringing new audiences closer to space than ever before. Viewers will have the opportunity to hear from NASA astronauts live and ask questions about life in orbit.
The event will begin at 11:45 a.m. EST on Wednesday, Feb. 12, livestreamed on the agency’s official Twitch channel:
https://www.twitch.tv/nasa
“This Twitch event from space is the first of many,” said Brittany Brown, director, Office of Communications Digital and Technology Division, at NASA Headquarters in Washington. “We spoke with digital creators at TwitchCon about their desire for streams designed with their communities in mind, and we listened. In addition to our spacewalks, launches, and landings, we’ll host more Twitch-exclusive streams like this one. Twitch is one of the many digital platforms we use to reach new audiences and get them excited about all things space.”
Although NASA has streamed events to Twitch previously, this conversation will be the first NASA event from the International Space Station developed specifically for the agency’s Twitch platform.
During the event, viewers will hear from NASA astronaut Don Pettit, who is currently aboard the orbiting laboratory, and NASA astronaut Matt Dominick, who recently returned to Earth after the agency’s Crew-8 mission.
The NASA astronauts will discuss daily life aboard the space station and the research conducted in microgravity. Additionally, the event will highlight ways for Twitch users to engage with NASA, including citizen science projects and science, technology, engineering, and math programs designed to inspire the Artemis Generation.
NASA is committed to exploring new digital platforms to engage with new audiences. Last year, the agency introduced its own streaming platform, NASA+, and redesigned nasa.gov and science.nasa.gov websites, creating a new homebase for agency news, Artemis information, and more.
To keep up with the latest news from NASA and learn more about the agency, visit:
https://www.nasa.gov
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Abbey Donaldson
Headquarters, Washington
202-358-1600
Abbey.a.donaldson@nasa.gov
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By Space Force
A US space domain awareness payload hosted on Japan's Quasi-Zenith Satellite 6 successfully launched on a Japanese H-3 launch vehicle from the Yoshinobu Launch Complex at the Japan Aerospace Exploration Agency’s Tanegashima Space Center in Japan on February 2.
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By Space Force
U.S. Space Forces Korea held the first phase of POLARIS HAMMER – KOREA, a space warfighter inclusive command-and-control exercise, at Osan Air Base, South Korea.
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By NASA
An interesting fact about Johnson Space Center’s Anika Isaac, MS, LPC, LMFT, LCDC, CEAP, NCC, is that there are more letters following her name than there are in it.
A licensed professional counselor, marriage and family therapist, and chemical dependency counselor with several other certifications, Isaac has been a fixture of Johnson’s Employee Assistance Program for the last 13 years. She provides confidential counseling and assessment, crisis response, referrals to community providers, and debriefing and support to Johnson’s workforce. Additionally, Isaac leads assertiveness skills training for employees, provides management consults, and presents on various mental health topics by request. She also coordinates the center’s Autism Support Group, which convenes monthly to offer networking, resource sharing, and support for caregivers of those with autism.
Official portrait of Anika Isaac.NASA Isaac’s invaluable counsel earned her a Silver Snoopy Award in 2022. Presented by Johnson Director Vanessa Wyche and NASA astronaut Jessica Meir, the award recognized Isaac’s exceptional efforts to support NASA’s ability to execute the tasks necessary for safe human spaceflight. “I taught, modeled, and empowered thousands to address critical issues and topics in the workplace, directly impacting mission success and safety,” she said.
Anika Isaac (center) receives a Silver Snoopy Award from Johnson Space Center Director Vanessa Wyche (left) and NASA astronaut Jessica Meir. NASA Isaac has also proudly participated in transparent, authentic conversations about personal and socially significant questions raised by the Johnson community, by leading panel discussions during center events and more. “Having those brave and bold conversations are necessary to foster a compassionate workplace culture that we emphasize through the Johnson Expected Behaviors,” she said.
Isaac said her work experiences prior to joining NASA not only affected her personally but also shaped her professionally. “The most troublesome challenges have been dealing with colleagues whom I saw be divisive in their comments and manipulative in their actions,” she said. “I overcame those challenges with faith, time, and talking to mentors and my trusted support system for perspective and guidance.”
Isaac’s career has also taught her to trust herself and give herself some grace. “In each moment I have everything I need to be successful and keep learning when I fall short of my expectations,” she said. She has come to appreciate the value of her unique experience and skillset, as well. “In an agency with so many experts in so many disciplines, in my respective discipline my expertise is as necessary and essential to the success of NASA’s mission,” she said. “I have also learned to stay persistent with my goals, since there are enough people to help me achieve them along the way.”
Johnson’s Employee Assistance Program (EAP) received a Group Achievement Award for the team’s support of the Johnson community following Hurricane Harvey in 2017 and the Santa Fe High School shooting in 2018. From left: Vanessa Wyche, Anika Isaac, EAP Executive Director Jackie Reese, EAP Counselor Daisy Wei, and Mark Geyer, who was Johnson’s director at the time.NASA Isaac looks forward to a future of space exploration that combines the best of the commercial sector, international partnerships, and NASA’s strengths with incredible advances in artificial intelligence and other technologies to ensure crew safety while propelling humanity further into the cosmos. She also celebrates the different backgrounds and cultures of today’s astronaut corps. “We are seeing a level of diversity in the faces of space explorers that has never existed before in the history of the space program,” she said.
Isaac encourages the Artemis Generation to learn and incorporate key aspects of NASA and space exploration history into their work while building their own culture and valuing their unique perspectives. “Trust yourself! Have you not usually recovered from setbacks? Those that came before you made similar mistakes,” she said. “Pay attention and learn from them. And build those crucial, reciprocal mentor and social relationships to enhance your ongoing personal and work journey.”
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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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