What 250 years has done to our solar system planet count. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Snapchat Planets turns your friendship ranking into a tiny social solar system, where being Mercury is elite and Neptune ...

Comparable to shaving foam, astronomers find the wispiest planets yet. They're in the southern "flying fish" constellation.

Astronomers have uncovered a pair of giant planets that are lighter than cotton candy. The two so-called super-puffs are the ...

Add Yahoo as a preferred source to see more of our stories on Google. (Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else we ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Scientists may have found one of the main sources of rocky material for the solar system, forming diverse populations of baby planets over millions of years. In a recent study published in The ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with atmosphere, they have a wide range of characteristics distinguishing them. But if ...

TUCSON, Ariz. (KGUN) — What started as a mysterious red dot in images taken by University of Arizona astronomers has been confirmed as a huge, newly forming planet — and University of Arizona’s ...

TUCSON, Ariz. (KVOA) - Astronomers have confirmed a new planet in one of the youngest solar systems ever found, thanks to University of Arizona technology. The system, called WISPIT 2, was first ...