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      NASA : un moteur à plasma pour atteindre Mars en trois mois

      news.movim.eu / JournalDuGeek · 7 days ago - 11:42

    Howe Industries Ppr

    Un concept de propulseur à plasma pulsé remarquablement efficient, mais tout de même assez puissant pourrait permettre de raccourcir considérablement les temps de trajet entre la Terre et la Planète Rouge.
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      Étoiles filantes, planètes, Lune : que voir dans le ciel en mai 2024 ?

      news.movim.eu / Numerama · Wednesday, 1 May - 11:30

    En mai, on observe ce qui nous plait ! Voici les phénomènes astronomiques à admirer à l'œil nu tout au long du mois, avec les dates pour ne rien louper.

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      pubsub.blastersklan.com / slashdot · Sunday, 21 April - 23:03 edit · 2 minutes

    Two months ago the team behind NASA's Ingenuity Helicopter released a video reflecting on its historic explorations of Mars, flying 10.5 miles (17.0 kilometers) in 72 different flights over three years. It was the team's way of saying goodbye, according to NASA's video. And this week, LiveScience reports, Ingenuity answered back: On April 16, Ingenuity beamed back its final signal to Earth, which included the remaining data it had stored in its memory bank and information about its final flight. Ingenuity mission scientists gathered in a control room at NASA's Jet Propulsion Laboratory (JPL) in California to celebrate and analyze the helicopter's final message, which was received via NASA's Deep Space Network, made up of ground stations located across the globe. In addition to the remaining data files, Ingenuity sent the team a goodbye message including the names of all the people who worked on the mission. This special message had been sent to Perseverance the day before and relayed to Ingenuity to send home. The helicopter, which still has power, will now spend the rest of its days collecting data from its final landing spot in Valinor Hills, named after a location in J.R.R. Tolkien's "The Lord of the Rings" books. The chopper will wake up daily to test its equipment, collect a temperature reading and take a single photo of its surroundings. It will continue to do this until it loses power or fills up its remaining memory space, which could take 20 years. Such a long-term dataset could not only benefit future designs for Martian vehicles but also "provide a long-term perspective on Martian weather patterns and dust movement," researchers wrote in the statement. However, the data will be kept on board the helicopter and not beamed back to Earth, so it must be retrieved by future Martian vehicles or astronauts. "Whenever humanity revisits Valinor Hills — either with a rover, a new aircraft, or future astronauts — Ingenuity will be waiting with her last gift of data," Teddy Tzanetos, an Ingenuity scientist at JPL, said in the statement. Thursday NASA's Jet Propulsion Laboratory released another new video tracing the entire route of Ingenuity's expedition over the surface of Mars. "Ingenuity's success could pave the way for more extensive aerial exploration of Mars down the road," adds Spacae.com: Mission team members are already working on designs for larger, more capable rotorcraft that could collect a variety of science data on the Red Planet, for example. And Mars isn't the only drone target: In 2028, NASA plans to launch Dragonfly, a $3.3 billion mission to Saturn's huge moon Titan, which hosts lakes, seas and rivers of liquid hydrocarbons on its frigid surface. The 1,000-pound (450 kg) Dragonfly will hop from spot to spot on Titan, characterizing the moon's various environments and assessing its habitability.

    Read more of this story at Slashdot.

    The Ingenuity Mars Helicopter Just Sent Its Last Message Home
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      science.slashdot.org /story/24/04/21/2221239/the-ingenuity-mars-helicopter-just-sent-its-last-message-home

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      NASA says it needs better ideas on how to return samples from Mars

      news.movim.eu / ArsTechnica · Tuesday, 16 April - 13:53 · 1 minute

    NASA's existing plan for Mars Sample Return involves a large lander the size of a two-car garage, two helicopters, a two-stage bespoke rocket, a European-built Earth return vehicle, and the Perseverance rover already operating on the red planet.

    Enlarge / NASA's existing plan for Mars Sample Return involves a large lander the size of a two-car garage, two helicopters, a two-stage bespoke rocket, a European-built Earth return vehicle, and the Perseverance rover already operating on the red planet. (credit: NASA/JPL-Caltech)

    NASA's $11 billion plan to robotically bring rock samples from Mars back to Earth is too expensive and will take too long, the agency's administrator said Monday, so officials are tasking government and private sector engineers to come up with a better plan.

    The agency's decision on how to move forward with the Mars Sample Return (MSR) program follows an independent review last year that found ballooning costs and delays threatened the mission's viability. The effort would likely cost NASA between $8 billion and $11 billion, and the launch would be delayed at least two years until 2030, with samples getting back to Earth a few years later, the review board concluded .

    But that's not the whole story. Like all federal agencies, NASA faces new spending restrictions imposed by the Fiscal Responsibility Act, a bipartisan budget deal struck last year between the White House and congressional Republicans. With these new budget headwinds, NASA officials determined the agency's plan for Mars Sample Return would not get specimens from the red planet back to Earth until 2040.

    Read 40 remaining paragraphs | Comments

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      La NASA prend une décision radicale pour sauver sa mission martienne

      news.movim.eu / JournalDuGeek · Tuesday, 16 April - 13:31

    Pour sauver Mars Sample Return, le programme de récupération des échantillons de Perseverance qui tourne au fiasco, la NASA a choisi de repenser complètement l'architecture de la mission.
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      La Nasa ne tient pas à se ruiner en ramenant des échantillons martiens

      news.movim.eu / Numerama · Tuesday, 16 April - 09:34

    Mars Sample Return

    La mission Mars Sample Return prévoit de ramener des échantillons du sol martien sur la Terre. Problème : le plan actuel est trop long et trop cher. La Nasa doit proposer une nouvelle approche, pour tenir correctement les délais et le budget.

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      La NASA est sur le point de faire une grande annonce sur Mars

      news.movim.eu / JournalDuGeek · Monday, 15 April - 12:08

    Ce soir à 19h, l'agence spatiale américaine va enfin nous donner des nouvelles de Mars Sample Return, une mission extrêmement importante qui enchaîne les galères financières et logistiques depuis de longs mois.
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      Des bouts d’astéroïde vont peut-être s’écraser sur Mars et c’est la faute de la Nasa

      news.movim.eu / Numerama · Saturday, 13 April - 08:00

    La Nasa avait réussi à dévier la trajectoire d'un astéroïde lors de la mission DART. Mais l'impact du vaisseau a peut-être créé un dommage collatéral. Des roches éjectées de l'astéroïde se dirigeraient vers Mars.

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      ExoMars : le gotha de l’aérospatiale reçoit 552 millions pour relancer la mission

      news.movim.eu / JournalDuGeek · Thursday, 11 April - 04:30

    Rover Rosalind Franklin Exomars

    Ce programme européen extrêmement ambitieux avait été temporairement sacrifié sur l'autel de la guerre en Ukraine; il va désormais se remettre en ordre de marche grâce à l'intervention d'une équipe de choc constituée de cadors de l'aérospatiale européenne.