WATCH! A new study reveals that some corals use an active sunscreen layer in the form of a colorful display that comes from unique pigments to attract algae. Click the link above to learn more and watch a video depicting the coral reefs.
NASA has developed a game that allows you-- yes, you!-- to map endangered coral reefs in an attempt to fight global warming. Are you interested in contributing to NASA's efforts? Click the link above to find out how.