NASA’s delayed Artemis rocket launch to Moon shows perils of liquid hydrogen fuel

Plans to launch NASA’s mega Moon rocket have slipped to late September — at the earliest — to allow more time for testing.The second attempt to lift off was scrubbed at the beginning of this month due to a large fuel leak from the Space Launch System (SLS) rocket.Artemis 1 crews have since repaired the leak, but the rocket still needs to undergo final tests next week to see how the new parts perform when the rocket is fuelled up.If everything goes to plan, the rocket could take off on Wednesday, September 28 at 1:37am AEST (although NASA is also looking at Monday October 3, Australian time).If it misses that window, then the next opportunity to fly won’t be until mid-October.”We’ll go when it’s ready,” NASA’s chief administrator Bill Nelson said after the last attempt.”This is part of a space program. Be ready for the scrubs.”Senator Nelson endured four scrubs before flying…

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