Mars Underground: Space Station on Mars

Leading aerospace engineer and Mars Society President Dr. Robert Zubrin has a dream. He wants to get humans to the planet Mars in the next ten years.

Now, with the advent of a revolutionary plan, Mars Direct, Zubrin shows how we can use present day technology and natural resources on Mars to make human settlement possible. But can he win over the skeptics at NASA and the wider world?
The Mars Underground is a landmark documentary that follows Zubrin and his team as they try to bring this incredible dream to life. Through spellbinding animation, the film takes us on a daring first journey to the Red Planet and envisions a future Mars teeming with life and terraformed into a blue world.
A must-see experience for anyone concerned for our global future and the triumph of the human spirit.

"This film captures the spirit of Mars pioneers who refuse to let their dreams be put on hold by a slumbering space program. Their passionate urge to walk the soil of an alien world is infectious and inspirational. This film is the manifesto of the new space revolution." James Cameron - Director of "Avatar"
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  Earth Mars
Average Distance from Sun 93 million miles 142 million miles
Diameter 7,926 miles 4,220 miles
Tilt of Axis 23.5 degrees 25 degrees
Length of Year 365.25 Days 687 Earth Days
Length of Day 23 hours 56 minutes 24 hours 37 minutes
Gravity 2.66 times that of Mars 0.375 that of Earth
Temperature Average 57 degrees F Average -81 degrees F
Atmosphere nitrogen, oxygen, argon, others mostly carbon dioxide, some water vapor
Number of Moons 1 2