NASA’s Artemis: humans are returning to the Moon

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• 00:07

  We are now in the official terminal count here for the Artemis II wet dress rehearsal.

• 00:15

  This week,

• 00:16

  engineers at NASA's Kennedy Space Center in Florida started what they called the wet dress rehearsal for an enormous 32-story high rocket sitting on the launch pad.

• 00:27

  Again, at this point,

• 00:28

  core stage should begin pressurizing the Orion spacecraft on internal power and the core stage wrapping up its liquid hydrogen replenish.

• 00:39

  The team filled the space launch system, also known as the SLS,

• 00:44

  with more than two and a half million litres of super-cold liquid hydrogen and liquid oxygen.

• 00:51

  Usually, that fuel would mix and ignite, blasting the rocket off into space.

• 00:57

  now coming up on about five minutes to go.

• 01:00

  But in this week's test, there was a leak of liquid hydrogen.

• 01:05

  As we come up on a couple of events next, T minus four minutes,

• 01:09

  40 seconds, when they will give the go for the liquid hydrogen high flow.

• 01:14

  Uh, guys, we have a hold.

• 01:16

  And the clock has stopped at T minus five minutes, 15 seconds.

• 01:19

  Oof.

• 01:20

  Okay.

• 01:22

  Uh, this is earlier than they had planned to hold.

• 01:28

  Tonight's wet dress has been nothing short of a roller coaster, that's for sure.

• 01:33

  NASA scientists have spent the last few weeks conducting tests on the SLS.

• 01:37

  Any faults they find are being investigated even if it means delaying the mission.

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