Skip to main content

Space History Photo: Mercury Astronauts in Weightless Flight on C-131 Aircraft

space history, nasa, vomit comet
Astronauts in the C-131 "vomit comet" simulate weightless flight. (Image credit: NASA)

In this historical photo from the U.S. space agency, astronauts in simulated weightless flight in C-131 aircraft flying "zero-g" trajectory at Wright Air Development Center.

Weightless flights were a new form of training for the Mercury astronauts and parabolic flights that briefly go beyond the Earth's tug of gravity continue to be used for spaceflight training purposes. These flights are nicknamed the "vomit comet" because of the nausea that is often induced.

Each weekday, looks back at the history of spaceflight through photos (archive).


Join our Space Forums to keep talking space on the latest missions, night sky and more! And if you have a news tip, correction or comment, let us know at:

The National Aeronautics and Space Administration (NASA) is the U.S. government agency in charge of the civilian space program as well as aeronautics and aerospace research.