It's not quite like home, but astronomers this week announced that they had found Earth's closest known analog outside the solar system. The newly discovered planet, which orbits a neighbor of the sun, is about five times as heavy as Earth and probably has an average surface temperature at which water would be liquid.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.