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

Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies ...

Pluto isn't alone—it's part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn't ...

Eris and Makemake are dwarf planets that, like Pluto, hang out in the Kuiper Belt. And, also like Pluto, they have now been found to exhibit evidence of oceans sloshing about beneath their frozen ...

As the gatekeepers to the Kuiper Belt, Charon and Pluto are a unique double dwarf planet system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Opinions expressed by Forbes Contributors are their own. Jamie Carter is an award-winning reporter who covers the night sky. Computer simulations suggest that there is an undiscovered Earth-like ...

Pluto is the second-largest of five confirmed dwarf planets in the Kuiper belt, an asteroid belt beyond Neptune. New Horizons won’t make it to any of the other Kuiper dwarves, but once Pluto is ...

Take advantage of a special 6-7 planet alignment from Earth's perspective. Planets 'line up' in the skies over California in ...

The Carnegie Institution for Science and the International Astronomical Union’s Minor Planet Center has announced ... Ultima Thule, the Kuiper Belt Object that the New Horizons spacecraft ...

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting asteroids from the outer asteroid belt may have brought it with them.

Beyond the dwarf planets, there's a region called the Kuiper Belt which is a collection of billions of smaller, icy objects. The Kuiper Belt is one of the regions from which comets are sometimes ...