On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Pluto, and the man who discovered it, both demonstrate that labels such as “dwarf planet” and “amateur” really don’t tell us anything. Look past the label, and what you find beneath just ...

Explore Ceres, the largest asteroid in our solar system, and discover its remarkable ancient ocean and ice-rich crust.

Trans-Neptunian objects (TNOs) are icy bodies that vary widely in size, from large dwarf planets like Pluto and Eris—each ...

On February 18, 2007, the Samjhauta Express train carrying hundreds of Indians and Pakistanis across the border was bombed by ...

Every zodiac sign has its own love-ruler — astrologer Bryanna Collier explains what's in store for each one this year.

Pluto may not be a planet any more, but you still have a chance to see the distant dwarf planet at one of Michigan's ...

Feb. 18 marks the 95th anniversary of the discovery of our outermost planet-not-planet. Here's what to know about the short ...

Pluto failed to meet that third criterion, so it was reclassified as a “dwarf planet” on Aug. 24, 2007. Critics point out that by that criterion, the Earth is also not a planet: We constantly ...

Whether Pluto is officially a planet is the least interesting thing about the runt of the solar system, astronomers will tell you 95 years after the discovery of the fascinating and sometimes ...

The National Weather Service issued cold weather warnings for over 95 million Americans as a polar vortex is set to bring ...