News
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Materials ScienceQuantum photocells might cheat efficiency limits
Factoring in quantum coherence could increase efficiency of harnessing sunlight in photovoltaic cells.
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SpaceBig baby stars found in Milky Way pockets
Astronomers have uncovered stellar nurseries that could help map the galaxy’s trademark spiral arms.
By Ron Cowen -
Tanning bed use linked to melanoma risk
People with the skin cancer are more likely to have frequented the salons, a study finds.
By Nathan Seppa -
AnthropologyContested evidence pushes Ardi out of the woods
A controversial new investigation suggests that the ancient hominid lived on savannas, not in forests.
By Bruce Bower -
EcosystemsHoneybee death mystery deepens
Government scientists link colony collapse disorder to mix of fungal and viral infections.