NASA Finds Ancient Organic Material, Mysterious Methane on Mars
Serious question.  Why do we spend so much time on Mars?Are we planning for evacuation of Earth?  I think it is clear that Mars is not suitable for mass migration.Are we looking for evidence that Mars was Earth Version 1 and that we evacuated and came here?Are we expecting to find minerals that we could ship to earth that do not exist here?Is it just so we can say we did it?  I am curious because we have barely explored Earth and many parts of our planet are still challenging to study.  Is it cheaper to explore Mars?