Planetary scientist Adeene Denton runs computer simulations to investigate Pluto, the moons of Saturn and other icy bodies in the solar system.

Pluto hasn't been a planet for almost 20 years. In the early 2000s, scientists discovered several objects of a similar size to Pluto. So, during the summer of 2006, members of the International ...

NASA's Hubble Space Telescope detected material from a Pluto-like body spiraling into a white dwarf star 260 light-years away from Earth. - NASA / JPL-Caltech / Tim Pyle illustration For the first ...

As New Horizons passed Pluto in July 2015, did the dwarf planet alter the probe's trajectory? Douglas KaupaCouncil Bluffs, ...

Mike Brown, California Institute of Technology astronomer and self-proclaimed Pluto killer, uttered these words exactly nine years ago today after the International Astronomers Union (IAU) officially ...

Editor’s note: Ever since the International Astronomical Union demoted Pluto from its status as a planet, Pluto’s champions, which include Redmond author Alan Boyle, have been fighting back. Below, ...

Almost 30 years after the discovery of Pluto’s large moon, Charon, a University of Hawaii astronomer has used a ground-based telescope to take an image of the Pluto system that exceeds the sharpness ...

Pluto was stripped of its "planet" title almost a decade ago. — -- News that a giant, ninth planet likely exists at the edge of our solar system is opening old wounds for Pluto fans who are still ...

For the first time, astronomers have observed something like a Pluto colliding with a white dwarf, the shriveled corpse of a medium-size star. NASA's Hubble Space Telescope made the discovery by ...

For the first time, astronomers have observed something like a Pluto colliding with a white dwarf, the shriveled corpse of a medium-size star. The white dwarf, dubbed WD 1647+375, is about 260 ...