When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of confirmed dwarf planets and their moons. From left to right: Pluto (with ...

Curious Kids is a series for children of all ages. Have a question you’d like an expert to answer? Send it to CuriousKidsCanada@theconversation.com.. Why does it matter if Pluto is a planet or a ...

Now, Pluto is one of five dwarf planets recognized by the IAU, and plenty more objects will likely earn that designation. “Kids were worried that Pluto was disappointed,” DeVorkin says.

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory about the possibility of a giant ninth planet. The dwarf planet's existence ...

The dwarf planet also has one provisional moon, which is nicknamed MK 2. Discovery: March 31, 2005. Size: 888 miles in diameter (1/9 the size of Earth) Distance from sun: 4.3 billion miles.

Planetary scientist Alan Stern, one of the most ardent defenders of Pluto's planethood, has no problem with calling the icy world a "dwarf planet." What he does have a problem with is the idea ...

Though Pluto has formally been considered a dwarf planet for almost two decades, it still has many lessons left for planetary scientists — including hints about how the solar system formed.

Orbiting a tiny planet at the far reaches of our solar system is an even tinier, pitch-black moon, NASA’s Hubble telescope has revealed. The moon – nicknamed MK2 – orbits Makemake, the ...

Scientists found a possible new dwarf planet — it could spell bad news for Planet 9 fans Pluto's hazy skies are making the dwarf planet even colder, James Webb Space Telescope finds ...