What kind of work does an astronaut do?

The astronaut works for the good of the whole world. He travels in space and obtains new information for the people of the Earth. The work of an astronaut is very dangerous, space is a place without air and even a drop of heat. If you find yourself in space without a special suit, you can die in a matter of seconds. Astronauts endanger their lives so that humanity flutters and learns something new about the space that surrounds our planet. But somewhere, perhaps there is a similar planet with intelligent organisms. If we develop, we will soon find out.