Later, it was reclassified as a dwarf planet, yet its mysterious charm has not diminished at all. Why is that? Because Pluto's complex and elusive terrain is like a mysterious key that may hold the ...

The dwarf planet Pluto and its five known natural satellites (Charon, Styx, Nix, Kerberos, and Hydra) may be frigid, but ...

Traditional theories suggest that Pluto's formation process is similar to that of other celestial bodies in the Kuiper Belt, ...

It's much harder to find, but there are a lot more of them." The first interstellar object to visit the solar system may have ...

Pluto, once considered the ninth planet, lies over 6 billion kilometers from Earth, making it one of the most difficult ...

Federal funding is about to run out for 19 active space missions studying Earth's climate, exploring the Solar System, and probing mysteries of the Universe.

Interstellar object 3I/ATLAS spacecraft close flyby SwRI mission has gained global attention. Scientists propose a mission to ...

On Episode 176 of This Week In Space, Rod Pyle and and Tariq Malik are joined by Alan Stern to talk about what's next in deep ...

NASA’s New Horizons spacecraft sent back the last images of Pluto and Arrokoth before leaving them behind forever. This film ...

Two of Pluto's midsize moons may be made of the guts of its largest moon, Charon, new research suggests.

Astronomer and Pluto mission leader S. Alan Stern explores how the field has transformed during his decades-long career.

University of Virginia astronomy undergraduates focus on the shadows of asteroids and dwarf planets for their Earth-bound observations.