Les ingénieurs de la NASA réalisent une percée dans les rotors supersoniques pour les hélicoptères martiens

Français

Les ingénieurs du Jet Propulsion Laboratory de la NASA ont testé avec succès des pales de rotor plus grandes capables de tourner plus vite que la vitesse du son sans se désintégrer. Cette étape importante, annoncée jeudi, augmente la capacité de portance de 30 % pour les futures missions sur Mars.

Les tests ont eu lieu dans une chambre simulant la fine atmosphère de Mars, où les extrémités des pales ont atteint Mach 1,08. Les ingénieurs du JPL et d'AeroVironment ont utilisé des conceptions à deux et trois pales, ces dernières correspondant à la configuration prévue pour la mission SkyFall. Un ventilateur à l'intérieur de la chambre a simulé des vents contraires à mesure que la vitesse augmentait, et l'équipe a observé les résultats depuis une salle de contrôle voisine.

Articles connexes

Orion spacecraft from Artemis 2 reentering Earth's atmosphere in fiery plasma glow, with inset of astronauts preparing for splashdown.
Image générée par IA

Artemis 2 astronauts begin Earth reentry

Rapporté par l'IA Image générée par IA

Orion spacecraft from Artemis 2 mission has completed its final maneuver before atmospheric reentry, the most critical phase of the journey. Astronauts Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen face a 13-minute descent at over 40,000 km/h and temperatures above 2,500 degrees, with splashdown planned off San Diego.

NASA repurposes lunar module for nuclear Mars mission

NASA announced on Tuesday that it will pause development of the Gateway lunar space station and repurpose its Power and Propulsion Element for SR-1 Freedom, a nuclear-electric propulsion demonstration mission to Mars launching before the end of 2028. The spacecraft will carry Skyfall helicopters to scout subsurface water ice and landing sites. Officials described the move as leveraging existing hardware to prove nuclear power in deep space.

China unveils software simulating scramjet physics in one week

Rapporté par l'IA

Chinese scientists have developed revolutionary software capable of fully simulating the extreme physics of supersonic fuel combustion in just one week. Previously, the same task could take a supercomputer years to complete. It modelled internal dynamics across hundreds of millions of computational cells, more than 20 times the resolution typical of current global research.

Technologie

Artemis II launch target slips to April 1 after helium issue rollback

Technologie

Bell Textron builds X-67 for vertical takeoff and jet speeds

Technologie

Researchers test semi-autonomous legged robot for planetary surfaces

Blue Origin reuses New Glenn booster successfully amid upper stage failure

Blue Origin achieved a milestone by successfully landing and reusing the first stage of its New Glenn rocket for the third flight, but the upper stage failed to place its payload into the correct orbit. The launch occurred Sunday from Cape Canaveral Space Force Station in Florida. The booster, named Never Tell Me The Odds, touched down on a ship in the Atlantic Ocean after its second flight.

Artemis II detects helium leak but proceeds to safe reentry

Rapporté par l'IA

NASA's Artemis II mission, the first crewed flight of the Orion spacecraft around the Moon since 1972, has encountered a helium leak in its service module but officials say it poses no threat to the crew's return. The spacecraft, carrying astronauts Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen, launched on April 1 and is set for splashdown in the Pacific Ocean on Friday evening. Ground teams adjusted the flight plan to study the leak while maintaining nominal performance.

NASA's Van Allen Probe A to reenter Earth's atmosphere this week

NASA's Van Allen Probe A satellite, launched in 2012 to study Earth's radiation belts, is set to reenter the atmosphere early this week after running out of fuel in 2019. The agency has approved a safety waiver due to the reentry's risk exceeding government standards, though the chance of harm remains low at 1 in 4,200. Most of the 1,323-pound spacecraft will burn up, with some debris potentially reaching the surface.

14-year-old Hainan boy handcrafts turbojet engine in living room

Rapporté par l'IA

A 14-year-old boy from China's Hainan Island has drawn public attention for reportedly handcrafting a turbojet engine in his family's living room. State media outlets have portrayed Che Jingang as a self-taught engineer, with his mother's social media account boasting 30,000 followers. The teenager, who calls himself 'rocket boy,' dismisses skepticism about his skills.

samedi 09 mai 2026 22h52

NASA starts training with Blue Origin moon lander prototype

samedi 25 avril 2026 12h43

NASA releases initial Artemis II mission assessments

lundi 06 avril 2026 04h41

NASA seeks to accelerate lunar landers for 2028 Artemis landing

vendredi 03 avril 2026 01h52

Artemis II crew fixes toilet fan and software issues early in lunar mission

mercredi 01 avril 2026 22h41

Artemis 2 launches successfully from Kennedy Space Center

mardi 24 mars 2026 22h37

NASA's SLS prepares for Artemis II lunar flyby launch as soon as April 1

lundi 23 mars 2026 07h14

Juno detects Jupiter lightning 100 times stronger than Earth's

vendredi 20 février 2026 03h00

NASA targets March 6 for Artemis II moon mission launch

mercredi 18 février 2026 20h47

NASA launches three rockets to probe northern lights

lundi 09 février 2026 19h50

General galactic startup plans water-based rocket fuel test

 

 

 

Ce site utilise des cookies

Nous utilisons des cookies pour l'analyse afin d'améliorer notre site. Lisez notre politique de confidentialité pour plus d'informations.
Refuser