Mars likely to have enough oxygen to support life: study
I never understood why colonizing Mars is needed.<p>Even if a meteorite hits Earth or Yellowstone erupts, Earth would be more "hospitable" to life than any other planet in our solar system because Earth has a lot of resources that are right under our noses: breathable atmosphere, radiation shielding, easily mined metals and organic matter.<p>It's much easier to build and maintain a bio-dome in the Sahara desert, Arctic region, Cheyenne mountains or underwater than on Mars.<p>Earth at it's worst is much better than anywhere else in our solar system.