Review
What NASA discovered on the largest worlds in the asteroid belt
When NASA’s Dawn spacecraft finally reached the giant asteroids Vesta and Ceres, scientists expected simple rocky worlds. Instead, the mission revealed mysterious bright spots, signs of icy eruptions, and strange geological features that challenged earlier theories about the asteroid belt. One world even showed evidence of cryovolcanoes erupting salty water into space. The discoveries suggest these bodies may be far more complex than the small remnants scientists once believed.
