Artemis I launch updates: Saturday launch scrubbed after reoccurring liquid hydrogen leak
It comes after the launch was scrubbed Monday due to an engine problem.
NASA kicked off Monday its plan to send an unmanned space capsule into the moon’s orbit, marking the initial launch in an ambitious plan to establish a long term presence on the moon for scientific discovery and economic development.
The space capsule, called Artemis I, will travel for roughly 40 days -- reaching as close as 60 miles from the moon, and then 40,000 miles above the moon when orbiting over its dark side -- before landing in the Pacific Ocean off the coast of San Diego.
After the launch was scrubbed, the next attempt will occur Sept. 3.
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NASA scrubs Artemis I launch
NASA announced a few minutes after Artemis I was initially scheduled to lift off that the launch has been scrubbed.
Engineers said the problem came from a liquid hydrogen line that was not chilled enough inside one of the rocket’s four core-stage engines, which needs to occur before they can be ignited.
The next attempt will occur on Sept. 2.
Artemis launch delayed due to storms, rocket troubleshooting
Artemis I will likely not be launching at 8:33 a.m. ET as originally planned after NASA ran into several delays in its preparation to send it into space.
The process of tanking, which includes filling the rocket's core stage with liquid oxygen and liquid hydrogen, was delayed due to some passing storms and lightning in the area, NASA said.
Moreover, a leak was discovered in the hydrogen fuel line, which NASA quickly resolved. The leak concentration was “at an acceptable level,” NASA said.
Engineers also discovered a potential crack in the inner stage flange, which connects two of the rocket's cylinders.
The countdown clock is currently paused at T-40 and the launch can go as late as 10:33 a.m. ET If that window passes, the next attempt at launch will be Sept. 2
Liquid hydrogen leak detected for the 4th time
NASA engineers have detected a liquid hydrogen leak for the fourth time, despite three attempts to troubleshoot the leak. NASA said its teams are now discussing next steps.
A third leak occurred earlier in a cavity between the ground and flight side plates of a quick disconnect in the engine section. They attempted to warm up the quick disconnect to try to reset the seal then began flowing liquid hydrogen to the core stage.
NASA said the liquid oxygen tank of the core stage is full and is being replenished as some of the super-cooled propellant boils off.