4 astronauts are now on their path to the moon. Here’s what happens next

By Jackie Wattles, Ashley Strickland, Elise Hammond, CNN (CNN) — The Artemis II mission crossed a crucial and historic threshold Thursday when the Orion spacecraft ignited its engine and propelled four astronauts toward the moon, setting them on a days-long slingshot trip that will reach deeper into space than any human has traveled before. The