NASA is taking a spectacular step towards sending humans back to the moon, 50 years after the last Apollo mission.
The Artemis I mission, set to liftoff in just over 16 hours time, will attempt to send an empty crew capsule into a far-flung lunar orbit.
If all goes well, astronauts could be strapping in as soon as 2024 for a lap around the moon, with plans to go even beyond to Mars.
Space.com editor Tariq Malik spoke to Kim Hill from the Kennedy Space Centre in Florida.
