Despite having discovered more exoplanets than any other telescope, Kepler has been retired for the very simple reason that ...

In 2015, NASA’s Kepler Space Telescope confirmed a planet almost identical to Earth — Kepler-452b, orbiting a Sun-like star 1 ...

It's easy to imagine clone armies, lightsabers, and starships on some of these very real planets.

CAPE CANAVERAL, Fla. -- An eighth planet has been found in a faraway solar system, matching our own in numbers. Even more amazing, machines and not humans made the discovery. NASA joined with Google ...

Scientists have long assumed that, like rocky planets such as Earth, sub-Neptunes begin with molten magma oceans. Their thick ...

After three years of searching, scientists have caught the elusive phenomenon. — -- The "brilliant flash" that occurs when a star dies and explodes has been captured for the first time in visible ...

Astronomers call it KOI-134, and it's a star located 3,747 light-years away from Earth. Despite the huge distance that separates us, we've known it was there for more than a decade now, ever since the ...

The Kepler probe's focus is on finding another habitable planet. — -- NASA says we're on our way to discovering Earth 2.0. The Kepler Space Telescope has located a planet and star closely ...

Scientists have devised a new method for mapping the spottiness of distant stars by using observations from NASA missions of orbiting planets crossing their stars’ faces. The model builds on a ...