none
Nobody has ever stepped foot on Mars. Only rovers have been on Mars.
so we can know more about it
ALOT
At the moment, Astronauts cannot go to any planet but Earth.
none
12
No one has stepped on Mars. It is the only known planet inhabited solely by robots.
No scientists went to the moon , the men who flew to the moon were all asronauts.
No astronauts, but many robots have been there.
After astronauts arrive at Mars they will need to wait 15.4 months for the Earth and Mars to line up right before they launch In order to make it back home.
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