Astronauts complete practice countdown for upcoming trip around the moon

Such "countdown demonstration tests" have traditionally taken place shortly before launch with the rocket and crew ship ...

NASA's Artemis II crew runs through launch day countdown test at KSC

A major step toward launch day is complete as NASA's Artemis II astronauts ran through a countdown demonstration test.
Morning Overview on MSN

Artemis II crew finishes key countdown rehearsal for moon mission

The four astronauts preparing to fly around the Moon on Artemis II have now practiced their biggest moment short of launch ...
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NASA Readies Mock Countdown for the First Crewed Mission to the Moon Next Year

Slowly but surely, all the pieces of the Artemis II Moon mission puzzle seem to be falling into place. More importantly, there seems to be no stopping the actual launch of the missions no later than ...
Colts Wire

Countdown clock to 3I/ATLAS. When will interstellar comet pass by Earth?

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...