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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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Late in the Hadean Eon, Earth's earliest period, some 4 billion years ago, first life chemicals are believed to have come together. Earth's surface seethed with vulcanic activity close to Earth's first lakes, and meteors crashed down regularly importing new chemicals from space. New experiments about the chemical evolution of prebiotic amino acid linkages mimic mild conditions during the late Hadean Eon. Artist's depiction. Credit: Getty Images / contract necessary for usage, distribution or reuse
