I recommend you check out the recent episode from the Cool Worlds Podcast about the water and atmosphere on Mars and how it has changed and may change again, with and without the intervention of humans. The episode, “Edwin Kite – Early Mars, Terraforming/Settling Mars,” is a discussion between podcast host David Kipping and Edwin Kite, Professor of Geophysical Sciences at the University of Chicago as well as Participating Scientist for the NASA Curiosity Rover.
The discussion gets into where Martian water may be today, what terra-forming efforts have been discusses in the past, the terra-forming possibilities in the future, and whether Mars should be seen as a second Earth. Oh yeah, it also discusses Elon Musk’s crazy idea to nuke the surface of Mars and even touches on the idea of a Planet 9.
It’s a fascinating discussion that is worth your time.
Our Awesome Universe 