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Meta s’apprête à dévoiler ses lunettes de réalité augmentée « Orion »
news.movim.eu / JournalDuGeek · Sunday, 3 March - 11:00
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NASA’s Artemis II crew meets their Moonship
news.movim.eu / ArsTechnica · Wednesday, 9 August, 2023 - 00:25
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For the first time in 51 years, NASA is training astronauts to fly to the Moon
news.movim.eu / ArsTechnica · Monday, 17 July, 2023 - 23:04 · 1 minute
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Le JWST a trouvé un « Graal » de l’astronomie dans la nébuleuse d’Orion
news.movim.eu / JournalDuGeek · Wednesday, 28 June, 2023 - 12:00
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NASA studying unexpected performance of Orion’s heat shield ahead of crew mission
news.movim.eu / ArsTechnica · Wednesday, 8 March, 2023 - 14:33
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Artemis I : revivez les temps forts de la mission épique en vidéo
news.movim.eu / JournalDuGeek · Wednesday, 14 December, 2022 - 15:30
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Artemis I : Orion rentre sur Terre après son voyage historique vers la Lune
news.movim.eu / JournalDuGeek · Monday, 12 December, 2022 - 13:30
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Artemis I : la capsule Orion approche d’une étape critique de la mission
news.movim.eu / JournalDuGeek · Friday, 9 December, 2022 - 17:30
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NASA’s Orion spacecraft is about to face its final test—and it’s a big one
news.movim.eu / ArsTechnica · Friday, 9 December, 2022 - 14:27
Enlarge / Artemis II commander Reid Wiseman, pilot Victor Glover, and mission specialists Christina Koch and Jeremy Hansen pose with their Orion spacecraft at NASA's Kennedy Space Center in Florida. (credit: Trevor Mahlmann)
The three Americans and one Canadian slated to fly on NASA's Artemis II circumlunar mission had a "pinch me" moment Monday when they got their first chance visit the Orion spacecraft that will carry them around the Moon and back to Earth.
The astronauts had an opportunity to peer through the hatch of the Orion crew capsule for the Artemis II mission, now largely complete and going through some final tests before it is connected to its power and propulsion module at NASA's Kennedy Space Center in Florida.
"We all said when we walked up to it the first time, that it gave us chills, and it really does," said Christina Koch, a mission specialist on the Artemis II mission. "So it's a new way that I feel bonded with this crew and also with the team."
Enlarge / Astronauts Victor Glover, Christina Koch, Reid Wiseman, and Jeremy Hansen are joined by an instructor (background) on the first day of Artemis II crew training. (credit: NASA )
The four astronauts assigned to soar beyond the far side of the Moon on NASA’s Artemis II mission settled into their seats inside a drab classroom last month at the Johnson Space Center in Houston. It was one in a series of noteworthy moments for the four-person crew since NASA revealed the names of the astronauts who will be the first people to fly around the Moon since 1972.
There was the fanfare of the crew’s unveiling to the public in April and an appearance on The Late Show with Stephen Colbert . There will, of course, be great anticipation as the astronauts close in on their launch date, currently projected for late 2024 or 2025.
But many of the crew’s days over the next 18 months will be spent in classrooms, on airplanes, or in simulators, with instructors dispensing knowledge they deem crucial for the success of the Artemis II mission. In the simulator, the training team will throw malfunctions and anomalies at the astronauts to test their ability to resolve a failure that—if it happened in space—could cut the mission short or, in a worst-case scenario, kill them.
Olivier Berné et ses collègues continuent leur idylle avec le roi des télescopes en annonçant la première détection du cation méthyle, une molécule fondamentale dans la dynamique de l'Univers.
Le JWST a trouvé un « Graal » de l’astronomie dans la nébuleuse d’Orion
Enlarge / NASA's Orion spacecraft descends toward the Pacific Ocean after a successful mission in December. (credit: NASA)
About three months have passed since NASA's Orion spacecraft splashed down into the Pacific Ocean after a flight beyond the Moon and back. At the time, the space agency said the Artemis I mission had successfully met its goals and paved the way for humans to follow suit.
This week, after carefully reviewing data from that Artemis I mission since splashdown, space agency officials reiterated that although there were a few minor issues with the flight, overall it bolstered confidence. As a result NASA's chief of human exploration for deep space, Jim Free, said the agency is targeting "late November" of 2024 for the Artemis II mission.
During this flight, four astronauts—likely including a Canadian—will spend a little more than a week in deep space. After checking out the performance of Orion in low-Earth orbit, the spacecraft will fly into what is known as a "free return trajectory" around the Moon, which will bring them as close as 7,500 km to the surface of the Moon before swinging back.
La NASA a publié un petit film qui revient sur les moments les plus marquants du voyage de la capsule Orion autour de la Lune.
Artemis I : revivez les temps forts de la mission épique en vidéo
Et cette grande aventure qu'est le programme Artemis ne fait que commencer !
Artemis I : Orion rentre sur Terre après son voyage historique vers la Lune
Enjeux, horaires... voici comment va se dérouler le retour sur Terre de la capsule Orion.
Artemis I : la capsule Orion approche d’une étape critique de la mission
Enlarge / Orion flew by the Moon on Monday as it prepared to return to Earth. (credit: NASA)
NASA's Artemis I mission is nearly complete, and so far Orion's daring flight far beyond the Moon has gone about as well as the space agency could hope. However, to get a passing grade, the mission must still ace its final test.
This final exam will come on Sunday, when the spacecraft starts to enter Earth's atmosphere at 12:20 pm ET (17:20 UTC). During the course of the next 20 minutes, before Orion splashes down in the Pacific Ocean off of Mexico's Baja Peninsula, it will need to slow down from a velocity of Mach 32 to, essentially, zero before dropping into the water.
This is no small feat. Orion has a mass of 9 metric tons, about the same as two or three large elephants. Its base, covered with a heat shield designed to slowly char away during passage through Earth's atmosphere, must withstand temperatures near 3,000 degrees Celsius.