Title: How Much Longer Can Earth Support Life? - Seeker
Headings: How Much Longer Can Earth Support Life?
How Much Longer Can Earth Support Life?
Earth could continue to host life for at least another 1.75 billion years, as long as some disaster doesn't intervene.
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Content: Earth is estimated to be about 4.5 billion years old.) Meanwhile, the other planets had habitable-zone lifetimes ranging from 1 billion years to 54.72 billion years. "If we ever needed to move to another planet, Mars is probably our best bet," Rushby said in a statement. " It's very close and will remain in the habitable zone until the end of the sun's lifetime - 6 billion years from now." While other models have been developed for Earth, they are not suitable for other planets, he added. Follow us @livescience, Facebook or Google+. Original article published on LiveScience. End of the World? Top Doomsday Fears 5 Bold Claims of Alien Life Strangest Places Where Life Is Found on Earth Copyright 2013 LiveScience, a TechMediaNetwork company. All rights reserved.