Follow latest updates, including how to watch the launch, as four astronauts prepare to set off on a 10-day, 685,000-mile journey with millions watching

NASA officials said Sunday that the crew, Space Launch System rocket and Orion capsule are ready to launch the Artemis II mission to circle the moon.

From a race with China to lunar discoveries, the US is investing time, effort and money to head to the Moon - and beyond.