Smallest exoplanet yet is found | Science News



Support credible science journalism.

Subscribe to Science News today.


Smallest exoplanet yet is found

Planet is just under twice Earth's size

7:18am, April 21, 2009

Inching ever closer to the goal of discovering a planet just like home, Swiss astronomers have announced finding the smallest extrasolar planet ever detected. The object, a mere 20.5 light-years away, could be as tiny as 1.9 Earths and isn’t likely to exceed twice that amount.

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

Get Science News headlines by e-mail.

More from Science News

From the Nature Index Paid Content