Re: Aren't we missing something ?
Yes Mars has an atmosphere, however while your feet will be in the atmoasphere your head won't be if you are standing, it is so thin.
Mars is under constant bombardment and is pockmarked with lots of recent hits.
Recent footage and photos reveal the activity is much higher than on Earth.
Our atmosphere provides us with a light-show and sparks with few hitting the ground.
On Mars you will be as protected/unprotected as the ISS.
Micrometeorites are enough to kill people on the surface.