Mars has all the Earthly resources
•Access to large amounts of near surface pure water ice.
•Ocean-sized quantity of water frozen.
•Possible past and present liquid water.
•All essential minerals for life: metals, carbon, nitrogen, oxygen, hydrogen.
•Substantial atmosphere: 1% of Earth in pressure, up to 5% of Earth in density. Can be increased ...
•Nearly (24h 39m) 24 hour day- excellent for growing food.
•Magnetic shielding in large regions: protection for humans and surface agriculture.
•Closest potentially habitable place to Earth!
Why Mars colonization ?