Live coverage: Space station crew home after 115-day mission

A United Launch Alliance Atlas 5 rocket lifted off from Cape Canaveral at 1:21 p.m. EDT (1721 GMT) with a satellite to replenish the U.S. Air Force’s Global Positioning System navigation network.

A pair of tiny automated robots touched down on asteroid Ryugu on Friday after separating from Japan’s Hayabusa 2 spacecraft, sending back pictures as the probes bounced across the asteroid’s alien landscape nearly 200 million miles from Earth.

A Merlin engine designed for the version of SpaceX’s Falcon 9 rocket that will carry astronauts into orbit for NASA failed during testing Saturday in Texas, but the company said its upcoming launches will not be affected by the accident.