NASA’s Oldest Active Astronaut Lands with his Crewmates on 70th Birthday Ranjitha April 25, 2025 NASA’s Oldest Active Astronaut Lands with his Crewmates on 70th Birthday2025-04-25T21:43:58+05:30 Technology Donald Pettit worked for seven months in space and came back to Earth on his 70th birthday, April 20.