Mystery solved? Ceres' bright spots likely made of salt

[link to www.space.com]

The mysterious bright spots on the dwarf planet Ceres may be composed of the same basic stuff that makes a foot bath feel so good, a new study reports.

Observations made by NASA's Dawn spacecraft, which has been orbiting the dwarf planet since March, suggest that Ceres' many bright spots could be made primarily of hydrated magnesium sulfates. Here on Earth, magnesium sulfate is sold as Epsom salt, a popular home remedy for a variety of ailments, including sore feet and joint inflammation. Scientists released an amazing new video of Ceres' bright spots in crystal clarity along with their new findings.