Vomit Comet

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A nickname for any fixed-wing aircraft that briefly provides a nearly weightless environment in which to train astronauts, conduct research, and film motion pictures
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He also experienced zero gravity in the so-called Vomit Comet and underwent serious G-forces in a US Air Force centrifuge.
He describes life as a space cadet experiencing zero-G maneuvers in the "Vomit Comet," and a flight to 80,000 feet in the F-104A Starfighter.
He also said this week "Space, here I come" after going for a trip on the so-called "vomit comet" - a sort of padded cell which flies in a parabolic curve to replicate the effects of zero gravity to train astronauts.
Gavin Walsh joined a group of space tourists on Nasa's G-Force-1 - a specially designed Boeing used to train US astronauts - which has been dubbed the Vomit Comet.
"We've encouraged bloggers to write about subjects ranging from Duke students flying in NASAs 'Vomit Comet' to research on how babies explore objects," explains Jarmul.
The service, dubbed the "vomit comet", aims to free up ambulance crews to save lives rather than waste their time on binge drinkers.
NASA also has an "Educator Astronaut Program" website with virtual training exercises that simulate those the astronauts go through, including riding the "vomit comet," survival training, robotics, and the spacewalk.
The so-called "Vomit Comet" technology was first used by NASA to train astronauts, but now even Average Joes, for just a few thousand dollars, can buy a ticket to float.
Rapid drops such as this simulate gravity; NASA's legendary "Vomit Comet," a KC-135 transport craft modified for use as an astronaut training tool, plunges thousands of feet nearly straight down to create 20- to 30 second stretches when human passengers feel no weight.
From a go in the vomit comet - a nausea-inducing ride used to train Russian cosmonauts, to learning to ride a bike while wearing spectacles that turn the world upside down, filming the programmes tested Marven's senses to the extreme.
NASA calls Weightless Wonder, but to many who have experienced the feeling of reduced gravity on this aircraft, no name fits better than the Vomit Comet. Still, for the 22 student teams from Texas and New Mexico who participate in the Texas Fly High program each year, there's no better way to spend a week.
The NASA KC-135, affectionately called the "Vomit Comet," is a specially modified aircraft that flies a series of parabolas to achieve weightlessness (0 g) for 25 seconds at a time.