The NASA moon mission completed several key milestones as its crew looped around the lunar body. It's expected to splash down on Earth on Friday. The four-astronaut crew of NASA's Artemis II mission is now on its way back to Earth after a record-breaking trip around the moon, traveling farther than any other humans have before. As the Orion capsule whipped around the back side of the moon Mond... [4300 chars]