A rare image reveals a giant planet clinging to two stars, helping scientists understand how planets survive in chaotic star ...

Two evening planets — Mercury and Mars — are well-nigh impossible to see this month, unless you live south of 30 degrees north latitude. Even from there, however, you'll need binoculars to carefully ...

Astronomers have discovered that aging stars may be devouring their closest giant planets as they swell into red giants. Using NASA’s TESS telescope to study nearly half a million stars, scientists ...

Our sun is about halfway through its life, which means Earth is as well. After a star exhausts its hydrogen nuclear fuel, its diameter expands more than a hundredfold, engulfing any unlucky planets in ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of other planets out there in the galaxy. But we’re still teasing out clues ...