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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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For decades researchers have been unable to crack Carl Sagan's 'Faint Young Sun Paradox,' or how the planet kept warm with the right mix of atmospheric gases during the Sun's early, dimmer days. Georgia Tech researchers may have found a clue. Jennifer Glass,an assistant professor in the School of Earth and Atmospheric Sciences and her team found that ancient life may have been breathing nitrous oxide -- also known in dentist offices as laughing gas -- long before it began breathing oxygen. Find more coverage at Space Daily, Laboratory Equipment, and UPI.