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
Artemis launch attempt still a-go for Saturday
The Artemis I launch attempt is still planned for Saturday from 2:17-4:17 p.m. ET, NASA officials said during a press conference Thursday.
"We're comfortable with our risk posture," Artemis mission manager Mike Serafin said. "That said, there's no guarantee that we're going to get off on Saturday, but we're going to try."
If not Saturday, the next launch attempt would be Monday from 5:12 p.m.-6:42 p.m. ET, officials said. Tuesday could also be an option, after which the next earliest launch attempt would be Sept. 19, Serafin said.
Sunday is no longer a backup option because the spacecraft would fly into an eclipse scenario, which would not allow it to get the power it needs from the sun.
If the launch is Saturday, the mission will be 37 days long, with the splashdown on Oct. 11, Serafin said.
-ABC News' Gio Benitez and Meredith Deliso