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  1. #1
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    Default Is Earth's Stabilizing Moon A Rarity in the Universe?

    New simulations show that Earth's moon is not only unique in the solar system, but may also be rare throughout the universe.


    Research reveals that less than 10 percent of terrestrial planets may have a satellite large enough to provide the stability life needs to develop.


    Earth spins around its orbital axis, changing its angle toward the sun — its obliquity — by a little more than a degree over the course of thousands of years. These small differences are significant enough to cause the ebb and flow of ice ages.

    Read the rest at:

    http://www.space.com/12464-earth-moon-unique-solar-system-universe.html?utm_source=feedburner&utm_medium=fee d&utm_campaign=Feed%3A+spaceheadlines+%28SPACE.com +Headline+Feed%29

  2. #2
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    1/10's really not all that rare



  3. #3
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    Alwasys pretty close to my mental limit. Or as I also call it, close to South Bend, IN.
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    Life tends to develop in unexpected places. First scientists thought life couldn't evolve at the bottom of oceans where the sun can't penetrate. It exists around the volcanic vents on the ocean bottom anyway. They thought life could live miles down in the earth. They found worms dubbed "Hell worms." Life seems to find a way.

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