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

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

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

That, plus Pluto’s small size—smaller than our moon—suggested that the world did not accrete in its current orbit from the primordial gas and dust that gave rise to the sun and the planets ...

NASA's New Horizons Pluto probe is gearing up to cross the "termination shock," an exotic boundary in the outer solar system, ...

Using NASA New Horizons spacecraft data and digital elevation models of Pluto and its largest moon Charon, mission scientists ...

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 ...

It did have five known moons: Charon, Nix ... influence on the orbital stability of the other objects in its neighborhood. Because Pluto did not fit the last of these requirements, after years ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.