Don Pettit, NASA’s oldest active astronaut, returned to Earth on April 20, the day he turned 70 years old. That concluded his fourth trip to space — a busy 220 days at the International Space Station.
This image of the Americas and Atlantic Ocean by the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite over nine days in April 2012 and thirteen days in October 2012. This image of ...