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China prepares to launch Shenzhou-21 flight, sending youngest astronaut and mice into orbit

The Shenzhou-21 manned spacecraft launches today at 11:44 p.m. Beijing Time (11:44 a.m. EDT) from the Jiuquan Satellite ...

Can Amazon Rainforest Survive Future? Scientists Test It With 'Time Machine'

Deep in Brazil's Amazon, scientists have built a "time machine" pumping carbon dioxide into the rainforest canopy to simulate atmospheric conditions predicted for the future to gauge how the biome ...