NASA chief Jared Issacman appears to be among those who support Pluto being reclassified as a planet. Could President Trump ...

New research suggests Pluto may have had a “kiss” with its largest moon billions of years ago in a harmless collision. The report, published in “Nature Geoscience,” describes how the minuscule dwarf ...

Hundreds of people who love the little planet that was dissed, gather every year in the Arizona town where Pluto was ...

Some 4.5 billion years ago, the dwarf planet Pluto was suddenly joined by a companion. For a brief period – perhaps only hours – they danced as if arm in arm before gently separating, a grand do-si-do ...

After yesterday’s surge of intensity, today feels like waking up to see what shifted during the storm. Mars and Pluto are still closely entwined, but the energy is less about ignition and more about ...

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ago, ...