News
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EarthBugged forests bad for climate
Trees savaged by pine beetles are slow to recover their ecological function as greenhouse gas sponges.
By Janet Raloff -
ChemistryHornet pigment drives solar cell in lab
Though far from photosynthetic, an insect's light-harvesting apparatus intrigues scientists.
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ChemistryTwisted rules of chemistry explained
A theorist uses quantum mechanics to explain why Möbius molecules have different numbers of electrons than standard rings.
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HumansGoogle project launches new field of culture study
An analysis of digitized books probes language change, collective memory and other cultural developments from 1800 to 2000.
By Bruce Bower -
Health & MedicineNo fear
A woman who lacks a basic brain structure, the amygdala, couldn’t be frightened no matter how hard researchers tried. And they tried.
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EarthClimate action could save polar bears
Cutting fossil fuel emissions soon would retain enough sea ice habitat for threatened species, scientists say.
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Health & MedicineGene linked to some smokers’ lung cancer
FGFR1 is amped up in a subset of cancers; inhibiting its proteins can shrink tumors in mice.
By Nathan Seppa -
EarthGassy volcanoes tied to mass extinction
Chemicals from a massive Siberian eruption 250 million years ago may have polluted the atmosphere and killed off most life on the planet.
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LifeMice missing protein burn more fat
Research on the receptor for the 'hunger hormone' suggests a molecular strategy for revving up the body’s furnace.
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Health & MedicineSalvia says high
Laboratory researchers show that the psychoactive substance in a popular, largely legal recreational drug causes a short but intense period of hallucination.
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HumansApartments share tobacco smoke
Children in nonsmoking families have higher levels of secondhand exposure if they live in multifamily dwellings.
By Janet Raloff -
ChemistryClever way to break the nitrogen-nitrogen bond
New chemical reaction cleaves dinitrogen molecule and brings carbon and nitrogen together.