We've never made it there, but no.
so we can know more about it
At the moment, Astronauts cannot go to any planet but Earth.
Theoretical, infinate, if you travel through warp space.
No not yet
There are no people on Mars, and no astronauts have visited Mars. The Moon, yes, Mars, no.
No astronauts have ever been to Mars, and no rock samples have ever been sent to Earth.
You appear to be misinformed. It is more difficult to send people to mars because it is so much farther away. That is why we have not sent astronauts to mars yet, but we have sent astronauts to the moon.
to run.
suckerss
none
none
no astronaut was ever sent to mars