Kepler finds tiny planet beyond our solar system

Astronomers have discovered a planet beyond our solar system that's about the size of the Earth's moon -- the first time they've found a planet smaller than any of the planets orbiting our sun. Iowa State University's Steve Kawaler was part of the research team that determined the size of the tiny planet's host star. The findings were published online on Feb. 20 by the  journal Nature.

An ISU News article with more information can be found here.