NASA is set to send four astronauts on a mission around the moon for the first time in more than 50 years, and viewers can watch the launch countdown live on April 1.

Astronauts, from left, Canadian Space Agency astronaut Jeremy Hansen, pilot Victor Glover, commander Reid Wiseman and mission specialist, Christina Koch leave the Operations and Checkout building on t...

As Day 4 dawned on the Artemis II mission, the astronauts were closer to the moon than to Earth, after crossing the halfway point between the two bodies on Friday night.