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Aujourd’hui — 21 novembre 2024Flux principal

NASA's Curiosity Rover Captures 360-Degree View of Mars

Par : BeauHD
21 novembre 2024 à 08:00
Space.com's Julian Dossett writes: For twelve years, we've watched Curiosity crawl its way over the rocky surface of Mars, decoding mysteries of the Red Planet and broadcasting back home pictures and data from the strange Martian environment. The Mars rover, built by NASA's Jet Propulsion Laboratory (JPL), has slowly scaled Mount Sharp since 2014. This mountain, officially monikered "Aeolis Mons," was discovered in the 1970s; cut into its alien landscape is the boulder-packed Gediz Vallis channel, which some scientists believe to be an ancient river bed. Curiosity crossed into Gediz Vallis earlier this year -- and, yesterday, JPL released a real treat for Mars lovers: a 360-degree panorama view of the Gediz Vallis channel. You can play the YouTube video and move your phone around for the nifty interactive feature. Or, if you're using a desktop PC, you can shift the video around with a mouse. The panorama showcases features like Kukenan Butte and Gale Crater Rim, with scientists debating whether water, wind, or landslides shaped the boulder-laden terrain. Another interesting observation is the presence of mysterious sulfur stones with yellow crystals. Scientists are unsure about their origin since such formations on Earth are linked to hot springs and volcanoes -- neither of which are known to exist on Mars. Curiosity is now heading toward a location called "the boxwork," a mineral-rich area potentially formed by ancient water flows.

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À partir d’avant-hierFlux principal

Lune, étoiles filantes, lumière zodiacale : que voir dans le ciel en novembre 2024 ?

Par : Nelly Lesage
2 novembre 2024 à 07:11

Quels spectacles astronomiques réserve le mois de novembre 2024 en France ? Léonides, lumière cendrée, conjonctions... Voici tous les phénomènes à voir facilement dans le ciel, avec les dates pour ne pas les louper.

NASA Is Developing a Mars Helicopter That Could Land Itself From Orbit

Par : BeauHD
26 octobre 2024 à 10:00
Longtime Slashdot reader MattSparkes writes: NASA is working on plans to send another, much larger helicopter to Mars than Ingenuity. The "Chopper" craft would land itself after "screaming into" the planet's atmosphere at speed, before covering several kilometers a day while carrying scientific equipment. It would probably be the most graceful arrival on the red planet of any lander yet.

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5 séries à voir après Nobody Wants This sur Netflix

2 octobre 2024 à 09:19

La nouvelle comédie romantique de Netflix, avec Kristen Bell (Veronica Mars) et Adam Brody (Newport Beach) cartonne déjà sur la plateforme, moins d'une semaine après sa sortie. Pour continuer sur votre lancée sentimentale, après Nobody Wants This, voici donc 5 séries similaires à voir en streaming.

Comète Tsuchinshan-ATLAS, étoiles filantes, Lune : que voir dans le ciel en octobre 2024 ?

Par : Nelly Lesage
1 octobre 2024 à 11:28

Avis aux fans d'astronomie : il y a beaucoup de phénomènes à voir l'œil nu en France en octobre 2024. Voici quand profiter des événements astronomiques du mois : la comète Tsuchinshan-ATLAS, des étoiles filantes (Draconides et Orionides) ou encore plusieurs conjonctions.

Ancient Martian Atmosphere May Be Sequestered In Clay

Par : BeauHD
26 septembre 2024 à 07:00
New research suggests that Mars' missing atmosphere may have been absorbed by minerals in the planet's clays, in a process similar to geological reactions on Earth. It may explain Mars' loss of its atmosphere and potential to support life, with methane possibly still present and usable as an energy source. Longtime Slashdot reader Baron_Yam writes: Conditions on early Mars were highly likely to have had CO2 carried down into the ground by water, where reactions with rock resulted in iron oxide (and Mars' rust-red surface) and released hydrogen, which in turn reacted with the water to form methane that was bound in smectite clays. It's all still there, just under the surface. The research has been published in the journal Science Advances.

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SpaceX Plans To Send Five Uncrewed Starships To Mars in Two Years

Par : msmash
23 septembre 2024 à 16:05
SpaceX plans to launch about five uncrewed Starship missions to Mars in two years, CEO Elon Musk said on Sunday. From a report: Earlier this month, Musk had said that the first Starships to Mars would launch in two years "when the next Earth-Mars transfer window opens." The CEO on Sunday said that the first crewed mission timeline will depend upon the success of the uncrewed flights. If the uncrewed missions land safely, crewed missions will be launched in four years. However, in case of challenges, crewed missions will be postponed by another two years, Musk said.

Read more of this story at Slashdot.

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