Uncategorized
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Health & MedicineWhy cancer patients waste away
A tumor-produced protein that interferes with insulin causes wasting in fruit flies with cancer.
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AstronomyGalactic split provides clue to dark matter mystery
An oddly divided galaxy may provide the first evidence that dark matter particles interact through a force other than gravity.
By Andrew Grant -
AnimalsShimmer and shine may help prey sabotage predators’ aim
Iridescent prey was more difficult to strike in a video game for birds.
By Susan Milius -
NeuroscienceNicotine exposure escalates rats’ desire for alcohol
Rats drink more alcohol after they’ve been hooked on nicotine.
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PlantsFrom lemons to kumquats, roots of citrus variety dug up
Citrus fruits’ lineage is traced through chloroplast DNA, revealing both maternal and paternal heritage.
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AstronomyMap pinpoints location of invisible dark matter
Dark matter can’t be seen, but a new map shows where it’s hiding. The map confirms that the mysterious matter is concentrated in regions that contain a lot of ordinary matter in the form of galaxy clusters.
By Andrew Grant -
Health & MedicineGenes may influence placebo effect
Certain gene variants may predispose people to experience the placebo effect, which may have implications for clinical trials and personalized medicine.
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Planetary ScienceComet 67P shows no sign of magnetism
Philae found no evidence of a magnetic field on comet 67P/Churyumov-Gerasimenko, but did send back some clues about its rough landing.
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AstronomyAfterglow alerts astronomers to gamma-ray burst
Astronomers have spotted the remnant glow from a gamma-ray burst without first observing its beam of high-energy gamma rays.
By Andrew Grant -
NeuroscienceMarijuana component fights epilepsy
A buzz-free extract of marijuana could help epilepsy patients whose seizures resist other treatments.
By Nathan Seppa -
PhysicsRubidium atoms used to record coldest temperature — ever
A swarm of rubidium atoms has been cooled to about 50 trillionths of a kelvin, making it the coldest substance ever measured.
By Andrew Grant -
AstronomySource of puzzling cosmic signals found — in the kitchen
One type of radio burst has a pretty mundane origin: prematurely opened microwave ovens.