News
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AstronomySupermassive black hole rises and shines
Astronomers may have witnessed the activation of a dormant supermassive black hole in a distant galaxy.
By Ron Cowen -
PsychologyThinking better with depression
Study suggests people with the mood disorder have an advantage when making certain decisions.
By Bruce Bower -
ChemistrySpray of zinc marks fertilization
Embryonic development begins with an outpouring of the metal, illustrating chemistry's importance in orchestrating biological processes.
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EarthWarming dents corn and wheat yields
Rising temperatures have decreased global grain production and may be partly responsible for food price increases.
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LifeGiant ants once roamed Wyoming
The first complete fossil found in North America suggests warm spells in the far north allowed big insects to spread.