Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of darkness; after all, Pluto is the Roman equivalent of the Greek God Hades.

This composite image of Pluto, right, and Charon, its largest moon, showcases photos captured by NASA’s New Horizons spacecraft in July 2015. Unlike how scientists believe Earth's moon formed billions ...

Tumbling end-over-end like a dropped baton in a relay race, it's fascinating to watch Pluto's moon Nix wobble about in a state of orbital chaos. That's what scientists call it. Chaos. It means no ...

Back in the 1980’s, a now-defunct magazine called Science Digest held a contest to name Planet X — the still-undiscovered world that astronomers believed might lie out beyond Pluto. One of the best ...

Recent images taken by the Hubble Space Telescope show that Pluto?s three moons are the same color, lending support to the theory that they were formed by a single, giant collision 4.6 billion years ...

Finding Supports Theory that Single Collision Created Ninth Planet’s Three Satellites Using new Hubble Space Telescope observations, a research team led by Dr. Hal Weaver of the Johns Hopkins ...

In the Feb. 23 issue of the journal Nature, a team led by Dr. Hal Weaver of the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Md., describes its discovery of two new moons ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. NEW YORK (AP) — NASA’s Webb Space Telescope ...

The love story between Pluto and Charon may have started with a kiss. A new study suggests the dwarf planet and its scarcely smaller moon likely came together in a collision that saw them conjoined ...

Brad E Tucker does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...