NASA's Dawn spacecraft has entered orbit around what has become the "mysterious" Ceres, one of the largest asteroids in the asteroid belt of our solar system. The Jet Propulsion Laboratory in Padadena has been very busy, as you might imagine.

Why is it mysterious? It's all about the shiny stuff. As the spacecraft approached the little object, bright gleams came back from a few places on the surface.

Here's the latest video from NASA/JPL. The spots have not yet been explained.

Ceres is large enough to be considered a dwarf planet, and Dawn is first spacecraft to successfully orbit a dwarf planet. In May, Dawn will get even closer to the surface for better images. Ceres is one of the four largest asteroids in the asteroid belt between Mars and Jupiter.