6,899 results
6,899 results for: Bears
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- Earth
Presto, Change-o!
Compared with the snail's-pace processes that normally shape Earth's surface, the impacts of extraterrestrial objects change our planet's geology in a flash.
- Earth
Pharm Pollution
Antibiotics in sewage sludge and manure have the potential to poison plants or end up in food.
- Materials Science
Gems of War
While international bodies grapple with regulatory schemes to stem the diamond trade that funds ongoing civil conflicts in African countries, scientists are attempting to develop methods for identifying gems from conflict zones.
