Solar systems with life-bearing planets may be rare if they are dependent on the presence of asteroid belts of just the right mass, according to a new study.
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PPT - Connect An Update for ITPG Jamie Sonsini November 2012 PowerPoint Presentation - ID:4661195
Asteroid Belts at Just the Right Place are Friendly to Life
Planet Formation
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PPT - Space News Update - April 2, 2012 - PowerPoint Presentation, free download - ID:5940162
PPT - Connect An Update for ITPG Jamie Sonsini November 2012 PowerPoint Presentation - ID:4661195
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Planet With Rings, Planet With An Asteroid Belt, Asteroid, 45% OFF