This story was updated at 10:16 p.m. ET. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. SEATTLE — Astronomers announced the discovery today (Jan.

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 ...

Size comparison between Earth and Kepler 10b. Delta Vega, Alderaan, Malacandra, Altair IV, Kepler 10-b. Which one of these worlds is not like the other? Answer: Kepler 10-b. Why? Because among the ...

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. Subscribe to read ...

Why is Christian Science in our name? Our name is about honesty. The Monitor is owned by The Christian Science Church, and we’ve always been transparent about that. The Church publishes the Monitor ...

A big, hot rock made its debut Tuesday. It's a planet orbiting a star 560 light-years away, and it is claimed to be the smallest planet discovered outside our solar system. Astronomers have found ...

"Kepler-10b is the smallest exoplanet discovered to date, and the first unquestionably rocky planet orbiting a star outside our solar system," said Natalie Batalha, Kepler's deputy science team leader ...

SEATTLE — Astronomers announced the discovery today (Jan. 10) of the first "unquestionably rocky" alien world — a planet called Kepler-10b. Scientists have announced other rocky exoplanets in the past ...