Habitable conditions on planet Earth will persist for at least another 1.75 billion years and perhaps as much as 3.5 billion years, according to a new study conducted by astrobiologists at the University of East Anglia (UEA). The findings are published in the journal Astrobiology.
http://www.universityherald.com/articles/4593/20130919/still-1-75-billion-years-enjoy-earth-s-treasures-uk.htm
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