Donald Pettit, American engineer and astronaut

Donald Roy Pettit is an American astronaut and chemical engineer best known for his orbital astrophotography and in-space inventions such as the Zero G Cup, which received the first ever patent for an object invented in space. He is a veteran of three long-duration missions aboard the International Space Station, one Space Shuttle mission, and a six-week expedition to find meteorites in Antarctica. As of 2025, at age 70, he is NASA's oldest active astronaut and the third oldest person to reach orbit, behind John Glenn and Larry Connor. He has accumulated 590 days in space.

April 20 is the 110th day of the year in the Gregorian calendar; 255 days remain until the end of the year.