Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

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 ...

Although astronomers have directly imaged a few dozen gas giants on the scale of Jupiter, Earth-sized planets are too small and dim to be directly imaged. That's not to say there's a shortage of Earth ...

NASA’s Kepler Space Telescope confirmed more than 2,600 exoplanets, including several located in the so-called habitable zone ...

Relative sizes of the newly discovered habitable-zone planets and Earth. Left to right: Kepler-69c, Kepler-62e, Kepler-62f and Earth (except for Earth, these are artists' renditions). Image credit: ...

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 ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American The prolific planet-hunting spacecraft that ...