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Artemis nasa launch7/26/2023 ![]() The leak has been fixed, team members said this evening. The Artemis 1 team also looked at several other issues that cropped up during Monday's countdown, including a slight hydrogen leak and a crack in the foam that's part of the SLS core stage's thermal protection system. The team doesn't think that's necessary or desirable, so they plan to leave the sensor in place and ignore its faulty readings on launch day, NASA officials said this evening. Replacing the sensor would likely require rolling Artemis 1 off the launch pad and back to Kennedy Space Center's huge Vehicle Assembly Building. 10 wild facts about the Artemis 1 moon mission NASA's Artemis program of lunar exploration There's no fuzz on that," said John Honeycutt, manager of the SLS program at NASA's Marshall Space Flight Center in Alabama. "We have convinced ourselves without a shadow of a doubt that we have good, quality liquid hydrogen going through the engines. Two more days of work and consultation have firmed up that conclusion, mission team members announced during this evening's news conference. ![]() They expressed confidence that Artemis 1 wouldn't be grounded for long, identifying Saturday as the next launch target. The Artemis 1 team couldn't troubleshoot the issue before the launch window closed, so Monday's attempt was called off.įurther analysis over the next day or so suggested that the issue wasn't a major one the evidence pointed to a faulty temperature sensor in the affected RS-25 engine, team members said during a news conference on Tuesday evening (Aug. Such thermal conditioning, achieved by "bleeding" supercold liquid hydrogen propellant into the RS-25s, helps prevent a shock when the engines ignite, NASA officials have explained. ![]() 29), but the mission team noticed a problem during the countdown: One of the four RS-25 engines that power the SLS core stage wasn't cooling down to the proper prelaunch temperature. Artemis 1 was originally supposed to lift off on Monday morning (Aug.
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