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      La fusée qui enverra les astronautes autour de la Lune avance bien

      news.movim.eu / Numerama · Friday, 29 September - 15:34

    fusée SLS

    La Nasa achève l'assemblage de l'étage principal de sa super-fusée, le Space Launch System (SLS). Elle doit voler en novembre 2024, afin de transporter un équipage autour de la Lune. [Lire la suite]

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      NASA finally admits what everyone already knows: SLS is unaffordable

      news.movim.eu / ArsTechnica · Thursday, 7 September, 2023 - 20:21

    The Space Launch System rocket is seen on its launch pad, LC-39B, in Florida.

    Enlarge / The Space Launch System rocket is seen on its launch pad, LC-39B, in Florida. (credit: Trevor Mahlmann)

    In a new report, the federal department charged with analyzing how efficiently US taxpayer dollars are spent, the Government Accountability Office, says NASA lacks transparency on the true costs of its Space Launch System rocket program.

    Published on Thursday, the new report ( see .pdf ) examines the billions of dollars spent by NASA on development of the massive rocket, which made a successful debut launch in late 2022 with the Artemis I mission. Surprisingly, as part of the reporting process, NASA officials admitted the rocket was too expensive to support its lunar exploration efforts as part of the Artemis program.

    "Senior NASA officials told GAO that at current cost levels, the SLS program is unaffordable," the new report states.

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      Boeing a-t-il volé des technologies pour construire le SLS ?

      news.movim.eu / JournalDuGeek · Friday, 9 June, 2023 - 13:00

    slslaynch-158x105.jpg

    Le géant de l'aviation est accusé d'avoir dérobé des technologies propriétaires de Wilson Aerospace et d'en avoir fait un mauvais usage, ce qui aurait conduit à des défaillances aux conséquences potentiellement désastreuses. L'entreprise a formellement démenti, et cette affaire va désormais se poursuivre au tribunal.

    Boeing a-t-il volé des technologies pour construire le SLS ?

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      A new report finds NASA has spent an obscene amount of money on SLS propulsion

      news.movim.eu / ArsTechnica · Thursday, 25 May, 2023 - 21:17

    NASA conducts a test of an RS-25 rocket engine on the A-1 Test Stand at Stennis Space Center.

    Enlarge / NASA conducts a test of an RS-25 rocket engine on the A-1 Test Stand at Stennis Space Center. (credit: NASA)

    An independent report published Thursday had troubling findings about the money spent by the agency on propulsion for the Space Launch System rocket. Moreover, the report by NASA Inspector General Paul Martin warns that if these costs are not controlled, it could jeopardize plans to return to the Moon.

    Bluntly, Martin wrote that if the agency does not rein in spending, "NASA and its contracts will continue to exceed planned cost and schedule, resulting in a reduced availability of funds, delayed launches, and the erosion of the public’s trust in the agency’s ability to responsibly spend taxpayer money and meet mission goals and objectives—including returning humans safely to the Moon."

    The 50-page report analyzed contracts that NASA has given to Aerojet Rocketdyne, for RS-25 main engines, and to Northrop Grumman, for solid-rocket boosters. The engines and boosters power the first stage of the Space Launch System rocket, which made a successful debut flight in November 2022. The rocket will launch astronauts for the Artemis missions to the Moon.

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      Les astronautes d’Artémis II n’auront qu’un an et demi pour être prêts pour la Lune

      news.movim.eu / Numerama · Thursday, 18 May, 2023 - 10:29

    Avant de lancer l'équipage d'Artémis II vers la Lune, la Nasa doit assurer leur entrainement. Les astronautes sont sur le point d'entamer cette formation : ils n'ont que 18 mois pour être prêts. La formation s'annonce intensive. [Lire la suite]

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      Artémis II : qu’est-ce qui attend les astronautes pendant le vol vers la Lune ?

      news.movim.eu / Numerama · Wednesday, 5 April, 2023 - 05:51

    Artémis II équipage

    La mission Artémis II autour de la Lune est un voyage d'environ dix jours, avec quatre astronautes à bord de la capsule Orion. La Nasa a détaillé les grandes étapes de cette odyssée. [Lire la suite]

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      Objectif Lune : quand partiront les futures missions Artémis ?

      news.movim.eu / Numerama · Tuesday, 14 March, 2023 - 16:23

    artemis

    Artémis I a été une réussite. Place à Artémis II en 2024. Et ensuite ? La Nasa a une dizaine de missions en tête. [Lire la suite]

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      Excellente nouvelle pour Artémis II : la méga-fusée SLS a marché mieux que prévu

      news.movim.eu / Numerama · Monday, 30 January, 2023 - 09:45

    SLS Space Launch System

    Les observations préliminaires de la Nasa sur le comportement de sa méga-fusée SLS lors de la mission Artémis I sont très enthousiastes. Le lanceur a dépassé les attentes, ce qui est une excellente nouvelle pour la suite. [Lire la suite]

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      Where 2022’s news was (mostly) good: Yhe year’s top science stories

      news.movim.eu / ArsTechnica · Saturday, 31 December, 2022 - 11:06 · 1 minute

    The self-portrait of Webb's mirrors is also looking very sharp thanks to the improved alignment.

    Enlarge / The self-portrait of Webb's mirrors is also looking very sharp thanks to the improved alignment. (credit: NASA/STScI )

    How often does something work exactly as planned, and live up to its hype? In most of the world, that's the equivalent of stumbling across a unicorn that's holding a few winning lottery tickets in its teeth. But that pretty much describes our top science story of 2022, the successful deployment and initial images from the Webb Telescope.

    In fact, there was lots of good news to come out of the world of science, with a steady flow of fascinating discoveries and tantalizing potential tech—over 200 individual articles drew in 100,000 readers or more, and the topics they covered came from all areas of science. Of course, with a pandemic and climate change happening, not everything we wrote was good news. But as the top stories of the year indicate, our readers found interest in a remarkable range of topics.

    10. Fauci on the rebound

    For better and worse, Anthony Fauci has become the public face of the pandemic response in the US. He's trusted by some for his personable, plain-spoken advice regarding how to manage the risks of infection—and vilified by others for his advocacy of vaccinations (plus a handful of conspiracy theories). So, when Fauci himself ended up on the wrong end of risk management and got a SARS-CoV-2 infection, that was news as well, and our pandemic specialist, Beth Mole, was there for it.

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