Latest Issue of Science News


Science Stats

Uninhabitable Earth

By
10:12am, November 11, 2013

To determine whether a planet could support life, astronomers first look at whether it falls within its star’s habitability zone, the Goldilocks distance that is not too hot or too cold. But that range can change as a star evolves. A recent estimate of the lifetimes of the habitability zones of Earth and various exoplanets suggests Earth could become unable to support life as soon as 1.75 billion years from now, when the sun brightens before dying out.

This article is available only to subscribing members. Join SSP today or Log in.

More Atom & Cosmos articles