Photo of the Day

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."
Photograph by James A. Sugar, Nat Geo Image Collection

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