earth
The only planet humans have ever been on is Earth.
They study how long to get to planets and if there is life in outer space.
The only planet astronauts have visited is earth. The moon, a satellite, has also been visited.
"all the planets and there moons" I think he means on what planets surface we send robots.
Astronauts can see planets, stars, and species.
They could, but as of now, no astronauts have travelled to any other planets in the solar system.
I would suppose that the scientist with the super powered telescopes would discover planets before the astronauts would.
Space astronauts went to the planets to be sure there is no life on planets
earth
Well, to explore space ofcourse. Astronauts go to space to find new planets or such. They observe what is happening.
None. Their had only reach the moon.
mercury
Yes. Astronauts do study the moon. In particular, Astronomers study the planets, stars and outer space.
What scientist and astronauts search for is mainly signs of life. To see if you can live on any of the planets. THANK YOU
The only planet humans have ever been on is Earth.
They study how long to get to planets and if there is life in outer space.