Kristen Stewart and Sally Ride Emily Soto; Getty Images Amazon has officially greenlighted its Kristen Stewart-led astronaut series. Two years after Deadline revealed that the Twilight star was attached to play astronaut and physicist Sally Ride, the first U.S. woman to fly in space, the streamer has handed The Challenger a limited series order. The Challenger comes from Maggie Cohn (The Staircase), who will write, exec produce and serve as showrunner. Related Stories News Australian Canine Reality Series 'Muster Dogs' To Be Remade In U.S.