Data from the Kepler project has confirmed a new world that fulfills the telescope's goal of locating Earth-sized planets ...

CAPE CANAVERAL, Fla. — Scientists have found a planet way out in the cosmos that’s close in size and content to Earth — an astronomical first. But hold off on the travel plans. This rocky world is so ...

CAPE CANAVERAL, Fla. - For the first time, scientists have found a planet beyond the solar system that not only is the same size as Earth, but has the same proportions of iron and rock, a key step in ...

Fast and furious A team of astronomers has discovered an Earth-sized planet where it could be your birthday, Christmas and New Year's Eve every day. The planet, named Kepler 78b and discovered by NASA ...

This illustration compares our Earth with the newly confirmed lava planet Kepler-78b. Kepler-78b is about 20 percent larger than Earth, with a diameter of 9,200 miles, and weighs roughly 1.8 times as ...

Scientists this week announced the discovery of a new planet, roughly 400 lightyears away, that they are calling Kepler 78b. Kepler is rare in that it contains similar features to that of the planet ...