-
How Did Pluto Get Its 'Whale'?Some scientists believe Pluto's red "whale"-shaped region is the mark of a giant impact — the same one that produced Pluto's huge moon Charon.
-
Distant Dwarf Planet DeeDee Stirs Up the Pluto Planethood DebateRecent observations that a tiny object in our solar system is a likely dwarf planet has some planetary scientists grumbling again about Pluto's demotion to that status.
-
Beyond Pluto: NASA's New Horizons Spacecraft Heads to Next AdventureNearly two years after its historic encounter with the dwarf planet Pluto, NASA's New Horizons spacecraft is getting ready for its next big adventure in the icy outskirts of the solar system.
-
Pluto's 'Heart' Hints at Deep, Underground OceanA new simulation of how Pluto got its "heart" reveals that the dwarf planet most likely has a deep ocean beneath its surface.
-
Weird Red Spot on Pluto Moon ExplainedPluto may be sharing its atmosphere with its largest moon, Charon, creating the visually striking red spot at the satellite's north pole.
-
Beautiful, Bewitching Pluto Poses in New Images from New Horizons ProbeAnother batch of photos from NASA's New Horizons probe, which flew past Pluto on July 14, 2015, reveals the majesty and mystery of this icy world.
-
Are Pluto's Pebbled 'Snakeskin' Slopes Made of Ancient Stuff?Pluto's mysterious "snakeskin" terrain may be made of material that predates the solar system's birth, scientists with NASA's New Horizons mission say.
-
Pluto's Mountains Capped by Methane Ice (Photo) -
The 'Floating Hills' of Pluto (Photo)
