NASA delays Artemis II launch to Mar.
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The O2O system could send more data to Earth than ever before, NASA says.
Artemis II is preparing for launch from the Kennedy Space Center, where the rocket will carry the Orion spacecraft for a second time, this time with a crew on its journey to the moon.
Temperatures dropped into the 20s over the weekend, yet NASA teams are hard at work preparing for the historic Artemis II liftoff. Here's the latest.
Nasa is making final preparations for its 10-day crewed test flight around the Moon, and you can blast off on Newsround's Artemis II interactive experience and learn all about its