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Vue normale

Reçu hier — 30 août 2025

Quand on pensait qu’il y avait des extraterrestres sur la Lune

✇Numerama.com - Magazine
Par :Hugo Ruher
30 août 2025 à 14:58

alien lune ovni

La croyance selon laquelle des extraterrestres vivaient sur la Lune a perduré longtemps dans l'histoire de l'humanité. Pourtant, malgré les progrès de la science et des connaissances, elle n'a pas complètement disparu.

Reçu avant avant-hier

« Nous devons arrêter de nous mentir à nous-mêmes » : Le spatial russe est en panne

✇Numerama.com - Magazine
Par :Hugo Ruher
28 août 2025 à 10:25

cosmonaute roscosmos espace

Le chef d'une des plus grandes entreprises russes dans le domaine spatial l'avoue : le secteur traverse une crise profonde. Entre la guerre en Ukraine et l'essor de nouveaux acteurs, il faudrait un miracle pour remettre sur les rails un pays qui a pourtant fait les grandes heures de la conquête spatiale.

Le vol de l’avion supersonique X-59, qui veut taire le bang sonore, est désormais tout proche

✇Numerama.com - Magazine
Par :Julien Lausson
26 août 2025 à 14:48

x-59

La NASA a souligné les objectifs qu'elle souhaitait atteindre avec le tout premier vol de l'avion supersonique expérimental X-59. Mais avant cela, il faut achever d'ultimes essais au sol. Ensuite, direction les cieux.

Où en est le tout premier vol du X-59, l’avion qui doit révolutionner le supersonique ?

✇Numerama.com - Magazine
Par :Julien Lausson
26 août 2025 à 14:46

x-59

La NASA a souligné les objectifs qu'elle souhaitait atteindre avec le tout premier vol de l'avion supersonique expérimental X-59. Mais avant cela, il faut achever d'ultimes essais au sol. Ensuite, direction les cieux.

Comment suivre le 10ème vol de la fusée Starship en direct ?

✇Numerama.com - Magazine
Par :Hugo Ruher
24 août 2025 à 05:05

SpaceX a planifié le prochain vol de son lanceur lourd Starship dans la nuit du 24 au 25 août, près de 3 mois après un neuvième essai qualifié, au mieux, de demi-succès. Comment faire pour suivre l'événement en direct ?

À la Nasa, adieu les sciences environnementales, et cap sur la Lune et sur Mars

✇Numerama.com - Magazine
Par :Hugo Ruher
21 août 2025 à 09:36

Trump Nasa

Donald Trump n'a jamais caché son mépris pour les sciences environnementales. Désormais, l'administrateur de la Nasa annonce que l'agence spatiale américaine va laisser ces disciplines de côté, pour se concentrer sur l'exploration humaine de la Lune et de Mars.

Une lune « invisible » vient d’être découverte autour d’Uranus

✇Numerama.com - Magazine
Par :Hugo Ruher
20 août 2025 à 13:15

Un satellite d'Uranus inconnu a été découvert grâce à des observations du télescope spatial James-Webb. Il s'agit de la 29ème lune orbitant autour de la planète. Les autres sondes passées à proximité ne l'avaient même pas remarquée.

La Chine ira-t-elle sur la Lune avant les États-Unis ? Pour ces experts, oui

✇Numerama.com - Magazine
Par :Hugo Ruher
19 août 2025 à 11:20

Starship fusée

Alors que les deux pays semblent lancés vers une course pour la Lune qui ne dit pas son nom, les progrès récents réalisés par la Chine laissent penser que c'est le drapeau chinois qui flottera bientôt sur notre satellite, et pas la bannière étoilée.

Les Perséides sont de retour en 2025, voici les photos les plus incroyables de ces étoiles filantes

✇Numerama.com - Magazine
Par :Nelly Lesage
12 août 2025 à 09:55

Les étoiles filantes égayent les nuits de l'été 2025. Comme chaque année, les Perséides sont de retour dans le ciel, pour le plus grand plaisir des amateurs d'astronomie et des photographes. Voici les images les plus splendides de ces météores, aperçues cette année.

Suivez en direct le retour sur Terre de l’équipage de la mission SpaceX Crew-10

✇Numerama.com - Magazine
Par :Nelly Lesage
9 août 2025 à 08:59

Un équipage de 4 astronautes rentre de l'espace ce samedi 9 août 2025. La mission SpaceX Crew-10 devrait s'achever avec un magnifique amerrissage dans le Pacifique. L'événement peut être vécu en direct grâce à une diffusion de la Nasa.

Apollo 13 Astronaut Jim Lovell Dies At 97

✇Slashdot
Par :BeauHD
8 août 2025 à 23:20
Jim Lovell, the legendary NASA astronaut who commanded the Apollo 13 "successful failure" mission, has died at age 97. From a report: Lovell was already well-known among NASA astronauts, having flown to space on the Gemini 7, Gemini 12 and Apollo 8 missions, before he was selected to command Apollo 13, which would have marked the third successful crewed moon landing for NASA. But during the ill-fated mission -- which carried Lovell as well as astronauts John Swigert Jr. and Fred Haise Jr. on board -- an oxygen tank located on the crew's service module exploded when they were about 200,000 miles (322,000 kilometers) away from Earth. Lovell delivered the news to mission control, saying "Houston, we've had a problem." With the damage effectively taking out the crew's power source and other life support supplies, the Apollo 13 crew had to abruptly abandon their trek to the lunar surface and use several engine burns to swing around the far side of the moon and put themselves on a course back toward Earth. The three-person crew made a high-stakes splashdown return in the South Pacific Ocean about three days after the tank explosion, marking the conclusion of what has come to be known as the "successful failure" of the Apollo missions. The ordeal was fictionalized in Ron Howard's 1995 film "Apollo 13." [...] Lovell was the first astronaut to make four spaceflights, totaling more than 715 hours in space. He was part of NASA's second-ever astronaut class, selected in September 1962 and nicknamed the "New Nine." And joining the Apollo 13 crew after having first served on Apollo 8, which intentionally circumnavigated the moon but did not land on its surface, made Lovell the first human ever to see the moon up close for a second time. Further reading: Acting NASA Administrator Reflects on Legacy of Astronaut Jim Lovell (Source: NASA)

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Mistakenly Sold NASA Command Trailer Goes On Sale

✇Slashdot
Par :BeauHD
8 août 2025 à 13:00
alternative_right quotes a report from The Register: Space fans looking to camp out in style have a chance to pick up an Airstream trailer that once served as the Convoy Command Vehicle for NASA's Space Shuttle operations at Edwards Air Force Base -- if they have a couple hundred thousand to spare, that is. "This is the NASA 025 Command Vehicle," current owner Jonathan Kitzen says of the once-silver, now paint-daubed and otherwise unassuming Airstream trailer. "NASA 025 was designed to land crewed missions at Edwards Air Force Base. [Airstream] informed me that this was, in their, words, 'the only NASA Airstream ever sold,' and the others [001-024] were all crushed or in museums. The sister crew vehicle (a 28-ft with one rear axle) is sitting at Kennedy museum [the Kennedy Space Center Visitor Complex]. All the rest are gone, except for this one." Kitzen picked up the vehicle in 2022 up after spotting it on a government surplus auction site, where it had been listed with few details and at a very low starting price. As for how the rare vehicle ended up for sale in the first place, Kitzen says he was told it was a mistake. "Apparently there was some miscommunication when the vehicle was decommissioned," he claims in the sale listing. "It should have been offered to museums but the sales team did not know what it was. They were told it was just a 'NASA vehicle,' they did not know it had any special status or history. To the sellers they thought it was just a van that could have been for moving laundry around the base. It was an accidental (yet valid) sale. "When I pulled up to Vandenberg Air Force Base after getting my NASA contractor badge I was greeted by the senior asset manager," Kitzen continues. "'We didn't know what we were selling!' were the first words out of her mouth. 'We didn't advertise it or offer it up to museums, the phone has exploded. Nobody told us what it was!'" [...] The listing on vehicle sale site Hemmings.com has an asking price of $199,000, though with no offers yet submitted. A listing on eBay with a $50,000 minimum bid and $290,000 buy-it-now price ended in May with no takers.

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NASA's Lunar Trailblazer Mission Ends In Disappointment

✇Slashdot
Par :BeauHD
5 août 2025 à 07:00
NASA's Lunar Trailblazer mission ended prematurely after losing contact with the satellite just one day post-launch, the agency announced today. Engadget reports: The NASA satellite was part of the IM-2 mission by Intuitive Machines, which took off from a SpaceX Falcon 9 rocket from Kennedy Space Center on February 26 at 7:16PM ET. The Lunar Trailblazer successfully separated from the rocket as planned about 48 minutes after launch. Operators in Pasadena, CA established communication with the satellite at 8:13PM ET, but two-way communication was lost the next day and the team was unable to recover the connection. From the limited data ground teams received before the satellite went dark, the craft's solar arrays were not correctly positioned toward the sun, which caused its batteries to drain. "While it was not the outcome we had hoped for, mission experiences like Lunar Trailblazer help us to learn and reduce the risk for future, low-cost small satellites to do innovative science as we prepare for a sustained human presence on the Moon," said Nicky Fox, associate administrator at NASA Headquarters' Science Mission Directorate. "Thank you to the Lunar Trailblazer team for their dedication in working on and learning from this mission through to the end."

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Pourquoi Pluton a perdu son statut de planète ?

✇Numerama.com - Magazine
Par :Hugo Ruher
2 août 2025 à 15:08

Lointaine et mystérieuse, Pluton a longtemps fait partie de la liste des planètes de notre Système solaire, avant d'en disparaître subitement en 2006, sur décision de l'Union astronomique internationale. Qu'est-ce qui a mené à cette décision toujours controversée 20 ans après ?

For Sale: a 1990 Airstream Trailer/NASA Command Vehicle for Space Shuttle Landings

✇Slashdot
Par :EditorDavid
2 août 2025 à 14:34
The vehicle "once led the Space Shuttle down the runway at Edwards Air Force Base," The Drive reported in 2022, noting it was won in an auction for $21,061 (beating 18 other bidders). "I just figured the NASA brand combined with Airsteam hip seemed like a can't lose combination," the buyer says now, in a listing for the vehicle on the on the automotive sales site Hemmings.com asking $199,000.. They're touting it as a priceless marketing/publicity prop — "a once in a lifetime opportunity" to own what was once an "onsite command center complete with communications and atmospheric monitoring... Imagine pulling into Burning Man driving this..." The seller points out it's the only custom-built "Airstream" trailer ever sold by NASA. (The others were crushed, except for one donated to the Kennedy museum.) But for this one "Apparently there was some miscommunication when the vehicle was decommissioned. It should have been offered to museums but the sales team did not know what it was.") "Has only 8240 miles on it as driven from Ohio to California then around the Edwards base." The seller apparently first tried listing it on eBay in May for $50,000. ("Reserve not met," says that listing page now. "Very well maintained, minor dings on exterior...") Thanks to long-time Slashdot reader schwit1 for sharing the news.

Read more of this story at Slashdot.

Les 4 astronautes partis avec une fusée SpaceX ont rejoint l’ISS, suivez leur entrée en direct

✇Numerama.com - Magazine
Par :Julien Lausson
2 août 2025 à 09:11

iss astronaute

SpaceX a lancé le 1er août une mission habitée vers l'ISS, avec quatre astronautes à bord. Après plusieurs heures en orbite, la capsule Crew Dragon a fini par rejoindre la station spatiale internationale. Les astronautes ont pu monter à bord.

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