No atmosphere=no oxygen, no abundance of water, temperature variables, etc.
Why are there no living things on the moon?
Guess you've never heard of the Apollo 18's mission and why we've never went back to the moon !
You wouldn't want to be there. It's cold outside and there's no kind of atmosphere, you'd be all alone (more or less).
https://www.youtube.com/watch?v=DTEpiFcn0wI
(Be patient... Or fast forward to 2:35)
Is there no life?