Boeing’s problem-plagued Starliner spacecraft has been scheduled to begin its return journey to Earth on Friday evening, NASA said Wednesday, with no one aboard. Six hours after it leaves the International Space Station, around midnight, the spacecraft is to make a parachute landing at the White Sands Space Harbor in New Mexico, the New York Times reports. NASA had already decided to put its two astronauts stranded at the space station on SpaceX’s Crew Dragon instead, considering it a safer bet, for their return in February. That means Butch Wilmore and Suni Williams are spending months longer…