"On a scale of 1 to 10, 1 being impossible, 10 being definate, what is the chances of live being on a comet or asteroid."
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More on the Rise of Earth's Oxygen Levels
October 17, 2005 / Posted by: Shige Abe
A new paper in Earth and Planetary Science Letters from NAI’s Carnegie Institution of Washington Lead Team and NAI’s International Partner, the Australian Centre for Astrobiology, explores environmental changes during the rise of atmospheric oxygen and the relationship between tectonics, atmospheric oxygen, and climatic changes.
Source: [Link]
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