Sunday, September 22, 2013
How much longer can Earth survive?
A new study calculates Earth could continue to host life for at least another 1.75 billion years, as long as nuclear holocaust, an errant asteroid or some other disaster doesn’t intervene. Somewhere between 1.75 billion and 3.25 billion years from now, Earth will travel out of the solar system’s habitable zone and into the “hot zone,” new research indicates…
(read more: Live Science)