Posts Tagged ‘earth’

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ASTRONOMICAL: On the Revolutions of the Celestial Spheres

January 30, 2012

A scale model of our solar system in twelve 500 page volumes printed-on-demand. On page 1 the Sun, on page 6,000 Pluto. The width of each page equals one million kilometers.

This film takes us through the first volume where we encounter the Sun, Mercury, Venus, Earth, Mars and the Asteroid Belt.

Order the set from mishkahenner.com

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The new question: Should we terraform Mars?

January 3, 2012

Artist’s conception of a terraformed Mars. Credit: Wikimedia Commons

Paul Scott Anderson at Universe Today: As “we” continue to explore farther out into our solar system and beyond, the question of habitation or colonization inevitably comes up. Manned bases on the Moon or Mars for example, have long been a dream of many. There is a natural desire to explore as far as we can go, and also to extend humanity’s presence on a permanent or at least semi-permanent basis. In order to do this, however, it is necessary to adapt to different extreme environments. On the Moon for example, a colony must be self-sustaining and protect its inhabitants from the airless, harsh environment outside.

Mars, though, is different. While future bases could adapt to the Martian environment as well, there is also the possibility of modifying the surrounding environment instead of just co-existing with it. This is the process of terraforming – essentially trying to tinker with Mars’ atmosphere and environment to make it more Earth-like. Although still a long ways off technologically, terraforming the Red Planet is seen as a future possibility. Perhaps the bigger question is, should we? Continue HERE

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