"The data from the termination shock encounter will be a treasure trove for space physicists worldwide who are eager to ...

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

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

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

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 ...

Filmmaker Adam Nemoy helps celebrate the 90th anniversary of Pluto's discovery this month at the 6th annual 'I Heart Pluto' festival from Feb. 13-17.

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

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

The annual event celebrates the discovery of the little planet with a big heart and other scientific advances at Flagstaff, ...

We’ve learned a lot about poor, poor little Pluto — thanks to NASA’s New Horizons probe, which visited the dwarf planet in 2015. 1 - Instead of an ancient, inert rock, we’ve found an icy ...