NASA’s moon crew will hit 25,000 mph tomorrow. That’s not the scariest part.

All eyes will be on Orion’s heat shield.

Orion will slam into Earth’s atmosphere at more than 30 times the speed of sound, in what NASA expects to be the most demanding part of the Artemis II moon mission.

On landing day, Artemis II entry flight director Rick Henfling and his team …

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