Pluto
The scientist who stripped Pluto of its planetary status helped discover it.
"Whatever they are, they're definitely weird."
Here are eight spectacular things that we learned this year.
These are the sharpest images yet of the dwarf planet.
WHAT'S HAPPENING
A day in the life of the dwarf planet.
The vibrant picture highlights the many subtle color differences on the planetoid's surface.
"Nothing like this has ever been seen in the outer solar system."
The backlit image gives us a new look at the dwarf planet.
The distant dwarf planet just keeps surprising us.
Craters, sure, but Charon's surface also features mountains, landslides, and a gigantic canyon.