Marine Corps swim qualification tests are about to get tougher

The Marines will now have five water survival qualification levels: Basic, Novice, Competent, Proficient, and Advanced.
Los Angeles Times

SpaceX says rocket engine test failure won’t affect its launch schedule

SpaceX confirmed that a new variant of its Merlin engine failed in a pre-test procedure on Saturday, resulting in an explosion at the company’s rocket development facility in Texas. SpaceX said in a ...