It is extremely dangerous and stressful to the human body. The actions or inactions of one person could cause instant death. An astronaut becoming ill or incapacitated, could affect the lives of the others.
Quick and smart actions, based on training and intelligence, are required to make the mission successful.
The training for the American astronauts is done at N.a.S..A space centers.
Very carefully.
yes it is possible astronauts have done it
Going out into space is not easy, especially because it is something new to the world. Only the most fit and good-with-technology people can go on high tech space shuttles. You must be fit, prepared for emergencies, and be good with equipment since you're riding billions of dollars of technology. Hopefully in the future, when technology improves, people don't need to be so skillful to ride space shuttles. P.S. The selection is done carefully because organizations and investors don't want to waste money on a rocket that has an increased chance of something bad happening.
The effects of weightlessness on humans is explored during the work done by astronauts. This helps with advancements in medical and technological fields.
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The only country to have sent astronauts to the moon is the United States of America, so it is the largest country to have done so.
No, it is not. It is an adverb. It means "(done) in a careful manner."
Astronauts are not necessarily scientists. In fact I'd guess few astronauts are scientists. The original astronauts were test pilots. Some had degrees in engineering. The term rocket scientist is probably a misnomer as most rocket design is done by engineers. Some science specialists are involved.
I found this on wikipedia after googling "astronaut" "Once selected, NASA astronauts go through 20 months of training in a variety of areas, including training for extra-vehicular activity in a facility such as NASA's Neutral Buoyancy Laboratory.[1][55] Astronauts-in-training may also experience short periods of weightlessness in aircraft called the "vomit comet", the nickname given to a pair of modified KC-135s (retired in 2000 and 2004 respectively, and replaced in 2005 with a C-9) which perform parabolic flights.[54] Astronauts are also required to accumulate a number of flight hours in high-performance jet aircraft. This is mostly done in T-38 jet aircraft out of Ellington Field, due to its proximity to the Johnson Space Center. Ellington Field is also where the Shuttle Training Aircraft is maintained and developed, although most flights of the aircraft are done out of Edwards Air Force Base."
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I do believe that it has already been done.