29 ส.ค. 2565
NASA ยกเลิกการปล่อยอาร์ทิมิส 1 - Artemis 1
NASA calls off Artemis 1 moon rocket launch over engine cooling issue
By Tariq Malik published about 8 hours ago
Artemis 1 won't fly today after all.
NASA had mostly fueled its first Space Launch System (SLS) megarocket to launch the Artemis 1 moon mission on Monday when launch controllers were unable to chill one of the four main engines to the temperatures needed to handle its super-cold propellant. The issue stalled plans to launch the SLS rocket and its uncrewed Orion spacecraft on an ambitious 42-day test flight around the moon. Liftoff was scheduled for 8:33 a.m.
Chilling the SLS rocket's engines before flowing cryogenic liquid hydrogen and liquid oxygen through them is a required step before the rocket can launch, NASA officials said. While three of the engines passed that test, Engine No. 3 did not, despite troubleshooting efforts.
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