Because "astronaut" would be a pretty silly name for a guy who went into caves.
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Astronauts are, if you like putting it this way, 'space people'. They fly in rockets and shoot to outer space and study it up there.
Humans, Astronauts (MAYBE)
trained space astronauts
Astronauts are people who fly in space
The dictionary definition is astronaut! Here is the meaning of the word. An astronaut is a person who goes into space. Astronauts travel in spaceships. Some astronauts have walked on the moon.
They do not. Astronauts in space are effectively weightless, so for them, there is no up or down; the idea of "upright" has no meaning.
As astronaut travels into outer space and some have been killed doing so. Most astronomers stay on the planet Earth and look up into space. There have been astronauts who are astronomers, but, most astronomers are not astronauts. There have been tens of millions of astronomers looking up at outer space, but, only a few hundred astronauts. No, they are not the same.
You can. Astronauts and cosmonauts have lived in space for up to 6 months at a time.
The astronauts breath as they have an oxygen tank which they keep attached with their space suit.
The astronauts can float in the
No u do not need to go up into space to be an astronaut. Actually many astronauts train and train but don't get to go up in space.