Photos: Atlas 5 rocket aims for International Space Station

Two space station astronauts are gearing up for a planned six-and-a-half-hour spacewalk Friday to replace a presumably shorted out solar array voltage regulator that knocked one of the lab’s eight power channels out of action late last year.

SpaceX could use its Starship vehicles to clear out space debris in Earth orbit, alongside the program’s more publicized purpose of ferrying people and cargo to the moon and Mars, a company executive said.

A SpaceX Falcon 9 rocket was raised vertical at Space Launch Complex 4-East at Vandenberg Air Force Base in California on Sunday ahead of a planned liftoff with Argentina’s SAOCOM 1A radar observation satellite, and the first landing of a SpaceX booster on the U.S. West Coast.