It would be understandable if you stopped thinking as much about Pluto after it was “demoted” from being considered one of the nine planets sharing the Earth’s solar system to being classified as a ...

The 95th anniversary of Pluto's official discovery by Clyde Tombaugh at the Lowell Observatory in Flagstaff, Arizona is rapidly approaching and the historic location is gearing up to host a grand ...

(MEDIA GENERAL) – As NASA spacecraft New Horizons continues its way through space, scientists and science enthusiasts have taken to social media to express their feelings on Tuesday’s historic Pluto ...

The discovery of another moon around Pluto is exciting news for planetary science, but it's also likely causing some anxiety for the team in charge of New Horizons, a spacecraft set to be the first ...

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Before Pluto was discovered, it was predicted. Astronomers had observed that massive objects can affect the orbits of their neighbors and, after seeing deviations in the orbits of Uranus and Neptune, ...

Mike Brown is an academic, a serious scientist who brought the farthest reaches of our solar system down to Earth. Brown's "How I Killed Pluto and Why It Had It Coming," filled with scientific ...

The International Astronomical Union declared that Pluto only fulfills two of the three criteria for a full-size planet. Pluto, discovered 90 years ago on Feb. 18, 1930, was long considered the solar ...