Although still far from the high-resolution images we enjoy today, these enhanced maps gave astronomers a better understanding of the complexity of Pluto’s surface. “These results and the maps ...

In July, NASA's New Horizons spacecraft took us to Pluto for the first time. The photos the craft sent back so far have astounded researchers. New Horizons principal investigator Alan Stern says ...

An curved arrow pointing right. After flying a space probe by Pluto for the first time last summer, NASA discovered an unusual "bite mark" feature on the surface. Produced by Jenner Deal.

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Pluto is too far away from Earth to be seen with the naked eye. If you stood on Pluto's surface, the Sun would merely appear to be a very bright star. Although previous images showed that ...

And that young, smooth swatch has a really important implication: It could mean that Pluto has an active sub-surface that keeps resurfacing and smoothing over the top layer, Zuber said.

Pluto, a planet that used to be one of the big nine, might have oceans under its surface. Pluto was thought to be entirely frozen over 800 million years ago but a discovery of a gaseous layer ...

Discovered in 1930 at Lowell Observatory in Flagstaff, Arizona, Pluto was hailed as the ninth planet in our solar system. For decades, it captivated imaginations with its icy surface and distant ...