We won’t be able to measure dwarf planets there for a very long time, but the ones we’ve found in our own solar system can teach us about how planets form everywhere. Hello, curious kids!

A campaign called "Dear Pluto" is asking children to submit greetings to the dwarf planet, both in written and video form. The idea is to help generate excitement about the solar system and space ...

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 ...