SEATTLE — When astronomers announced Jan. 10 the discovery of Kepler-10b, they described the alien world as “unquestionably rocky.” Scientists have announced other rocky exoplanets in the past, but ...

This story was updated at 10:16 p.m. ET. SEATTLE — Astronomers announced the discovery today (Jan. 10) of the first "unquestionably rocky" alien world — a planet called Kepler-10b. Scientists have ...

The Local newsletter is your free, daily guide to life in Colorado. For locals, by locals. So far in the search for life elsewhere in the universe, astronomers have found scores of large planets.

SEATTLE —NASA has discovered the smallest planet ever seen beyond our solar system — a rocky world just 1.4 times larger than Earth — using its planet-hunting Kepler space telescope. The planet, ...

SEATTLE – NASA has discovered the smallest planet ever seen beyond our solar system – a rocky world just 1.4 times larger than Earth – using its planet-hunting Kepler observatory. The planet, called ...

And what constitutes an “earthlike planet” anyway? The Kepler Space telescope has found a small, rocky planet, the smallest yet found orbiting a star outside our solar system, the Kepler team ...

The newly-discovered Kepler-10b is, in terms of size, the most Earth-like exoplanet yet discovered, and the first completely confirmed discovery of a rocky planet around another star. This is very ...

NASA's Kepler mission confirmed the discovery of its first rocky planet, named Kepler-10b. Measuring 1.4 times the size of Earth, it is the smallest planet ever discovered outside our solar system.

[UPDATE (January 15, 2011): Mea culpa. It’s getting hard to keep up with all the exoplanets being found now, and a few folks have let me know that the planet CoRoT 7b, while bigger than Kepler-10b, is ...

Forbes contributors publish independent expert analyses and insights. Kevin Anderton, Kansas City-based science reporter and graphic artist. This article is more than 7 years old. The past year has ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. A tiny world of molten rock, orbiting scorchingly close to its host ...