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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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The green reflects strong oxygen photosynthesis on Earth. Before it evolved, life on the planet was mostly single-cell, and life as we know it would die off without it. Photosynthesis is not in acute danger, but there are stresses that can break it down. Studying it may allow humanity to tweak it in the future, if ever needed, or even in the present to increase crop productivity. Credit: NASA Goddard Space Flight Center / press photo
