CAPE CANAVERAL, Fla. — SpaceX safely returned four astronauts from the International Space Station on Sunday, making the first U.S. crew splashdown in darkness since the Apollo 8 moonshot. The Dragon capsule parachuted into the Gulf of Mexico off the coast of Panama City, Florida, just before 3 a.m., ending the second astronaut flight for…

SpaceX Returns 4 Astronauts to Earth in Rare Night Splashdown