The countdown is on for the launch of NASA’s Artemis II mission around the moon . At 6:24 p.m. ET Wednesday, four astronauts are scheduled to lift off from NASA’s Kennedy Space Center in Florida, beginning a 10-day journey that will take them looping around Earth and the moon . The crew — NASA astronauts Reid Wiseman, Christina Koch and Victor Glover and Canadian astronaut Jeremy Hansen — will be the first people to launch toward the moon since the Apollo 17 mission in 1972, more than 50 years