Live coverage: Space station crew safely returns to Earth

SpaceX called off a launch attempt in Texas Monday for the Super Heavy booster and Starship launch vehicle, blaming a bad valve on the first stage. The next launch attempt for the world’s largest rocket is scheduled for Thursday, depending on weather and a fix for the valve problem.

A robotic arm extended from NASA’s OSIRIS-REx spacecraft briefly contacted the rugged surface of asteroid Bennu Tuesday to gobble up pristine samples, a climactic moment in the $1 billion mission to bring asteroid material back to Earth in 2023.

Former NASA astronaut Peggy Whitson, with more time in space than any other American, rocketed back into orbit for the fourth time Sunday, riding a SpaceX Falcon 9 launcher from Florida with a fare-paying investor and private pilot, and the first two Saudi Arabian astronauts to fly to the International Space Station.