NASA's Artemis II mission is set to launch on Wednesday from the US state of Florida, scheduled no earlier than 6:24 p.m. Eastern Time from NASA's Kennedy Space Center. The Space Launch System rocket and Orion spacecraft are being carefully prepared for the mission, which will send four astronauts on an approximately 10-day journey around the Moon. The crew consists of NASA astronauts Reid Wiseman, Victor Glover and Christina Koch, and Canadian Space Agency astronaut Jeremy Hansen.