Artemis

NASA is encountering new problems with its second attempt to launch its massive Space Launch System rocket and Orion spacecraft to the moon.

This time, they used helium to pressurize the line, but this did not work either. They also started loading the liquid hydrogen, but at about 7:15 a.m. But when they started to reflow the hydrogen, they noticed another leak.

NASA's new moon rocket sprang another hazardous leak Saturday, as the launch team began fueling it for liftoff on a test flight that must go well before ...

The launch team planned to ignore the faulty sensor this time around and rely on other instruments to ensure each main engine was properly chilled. If not, the resulting damage could lead to an abrupt engine shutdown and aborted flight. On Monday, hydrogen fuel escaped from elsewhere in the rocket. People last walked on the moon 50 years ago. NASA wants to send the crew capsule atop the rocket around the moon, pushing it to the limit before astronauts get on the next flight. But minutes later, hydrogen fuel began leaking from the engine section at the bottom of the rocket.

Le lanceur SLS, dans lequel se trouve le vaisseau spatial Orion, au centre spatial Kennedy de la NASA, en Floride. Photo : NASA/Joel Kowsky.

La NASA aura consacré d'ici la fin de 2025 plus de 90 milliards de dollars dans son nouveau programme lunaire, selon un audit public. À son retour dans l'atmosphère terrestre, il devra supporter une vitesse de 40 000 km/h et une température moitié aussi chaude que celle de la surface du Soleil. La NASA souhaite ensuite lancer environ une mission par an. Mais vers 7 h 15, une fuite a été détectée au pied de la fusée, au niveau du tuyau par lequel passe l'hydrogène jusqu'au réservoir. Une nouvelle tentative pourrait éventuellement avoir lieu lundi ou mardi, mais la NASA devra analyser tous les paramètres avant de se prononcer sur une nouvelle date. Le décollage était initialement prévu à 14 h 17 heure locale (18 h 17 GMT), avec une fenêtre de tir de 2 heures.

Due to lift-off at 2:17 p.m. EST on September 3, 2022 from Launch Pad 39B at NASA's Kennedy Space Center in Florida, NASA's Space Launch System (SLS) suffered ...

high, the SLS is also a “Moon rocket” with 8.8 million pounds (3.9 million kg) of thrust. Orion will enter an elliptical orbit of the Moon that will see them get to within 62 miles above its surface and about 40,000 miles beyond it. The SLS is a largest rocket constructed since the agency’s Saturn V “Moon rocket” was last used in 1973. When Artemis I does finally lift-off it will embark on a 1.3 million miles (2.1 million kilometers) journey. That would mean a much longer delay. Due to lift-off at 2:17 p.m.

NASA engineers gave a “no go” for launch recommendation on Saturday morning, hours before the scheduled launch. The Space Launch System and Orion–the rocket and ...

[pledged](https://www.washingtonpost.com/technology/2019/03/26/pence-calls-nasa-send-humans-moon-within-five-years/) to put people back on the lunar surface by 2024; NASA now projects astronauts could return to the moon in [2025](https://www.nytimes.com/2022/09/01/briefing/nasa-moon-mars-space-travel.html). The rocket [didn’t take off](https://www.nytimes.com/2022/09/02/science/nasa-artemis-moon-launch-saturday.html) Monday after a sensor indicated that one of the rocket’s engines was not sufficiently chilled, a necessity for a safe liftoff. “It's a future where NASA will land the first woman and the first person of color on the moon. If the mission is successful, four astronauts will travel on [Artemis II](https://www.nytimes.com/2022/09/02/science/nasa-artemis-moon-launch-saturday.html) and fly around the moon. The Space Launch System and Orion–the rocket and its capsule–were [scheduled](https://thehill.com/policy/technology/3626906-artemis-i-rocket-leaks-hydrogen-fuel-before-second-launch-attempt/) to take off between 2:17 and 4:17 p.m. [no go](https://www.orlandosentinel.com/space/artemis/os-artemis-launch-live-updates-20220903-q6buchfcojdkfc3chqzna3zdhi-story.html)” for launch recommendation on Saturday morning, hours before the scheduled launch.

«Je ne suis pas surpris qu'il y ait un report. C'est une mission de tests et d'essais. On doit valider l'ensemble des technologies et procédures dans ce long ...

On veut que la mission soit réussie de façon éclatante», croit-il. Ça démontre la rigueur des ingénieurs de la NASA pour s’assurer que tout soit optimal. «Plus le temps passe, plus la Lune est dans une position défavorable pour un lancement.