NASA's Artemis 3 mission will practice rendezvous and docking operations in Earth orbit, paving the way for a planned moon landing on Artemis 4. (Image credit: NASA) We just learned a little more about NASA's next Artemis mission. The agency dropped a few details on Wednesday (May 13) about Artemis 3 , a crewed mission that will test rendezvous and docking operations with one or more lunar landers close to home. "While this is a mission to Earth orbit, it is an important stepping stone to successfully landing on the moon with Artemis 4," Jeremy Parsons, Moon to Mars acting assistant deputy administrator at NASA’s Exploration Systems Development Mission Directorate in Washington, D.C., said in a statement on Wednesday . "Artemis 3 is one of the most highly complex missions NASA has undertaken." We already knew the broad outlines of Artemis 3: It will use NASA's Space Launch System (SLS) rocket to send four astronauts to orbit aboard the Orion spacecraft.…