Wikimedia Commons/The Challenger series TV Kristen Stewart stars as astronaut Sally Ride in The Challenger, a new Prime Video limited series. Her first lead TV role, from an acclaimed production team. March 20, 2026 AceShowbiz - The Challenger, a limited series about astronaut Sally Ride with Kristen Stewart in the starring role, has been officially greenlit at Prime Video. The Amazon-owned streamer has cleared the drama for launch after a development period of nearly two years.