When the four-person Artemis II crew returned to Earth on Friday, they were welcomed by none other than four U.S. Navy sailors. The Artemis II crew returned April 10 following a 10-day mission of flying around the moon, predicated on better understanding life support systems, spacecraft, and preparing for future lunar surface missions to both the moon and Mars. It was NASA’s first crewed lunar flyby in 50 years. Four Navy sailors composed the dive medical team who were the first to open the