Photo of the Day
Each day, we highlight one extraordinary photograph from National Geographic. Check out more of our photos here.
astronauts learning what weightlessness feels like in a NASA training aircraft
August 8, 2020 | Flight Training
Aspiring astronauts experience 30-second intervals of weightlessness in a NASA training aircraft. To create the effect, the plane flies in parabolas—and thus earns the nickname "The Vomit Comet."
