Uncategorized
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AstronomySupernova is a dust factory
Grains of matter spewed by stellar explosion offer clues to early star formation.
By Andrew Grant -
MicrobesMe and my microbiome
Tina Hesman Saey tries out new services offering clients a peek at their own bacteria.
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AstronomyUnusual three-star system promises new test of gravity
A unique stellar threesome could help astronomers test the leading theory of gravity to unprecedented precision.
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LifeDeadly influenza could strike aboriginal groups hardest
Native Alaskans and Australians tend to lack potent flu-fighting immune cells.
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NeuroscienceHormone hampers effects of marijuana
Study of pot-blocking brain chemical in rodents could lead to new treatments for cannabis addiction.
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AnimalsFlightless birds face extinction
New Zealand’s flightless birds have limped through the last few decades, but conservation efforts have had some success.
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MicrobesGut bacteria respect diets, not borders
Malawian and Guahibo gut microbiomes resembled those of herbivorous mammals, while American guts were more similar to carnivores’.
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ClimateMangroves move up Florida’s coast
Satellite images reveal that the tropical trees are expanding north up Florida’s Atlantic coast, taking advantage of rising winter temperatures.
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AstronomyRelic of early universe found nearby
A galaxy little changed since the dawn of the universe shows up in our celestial neighborhood.
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AnimalsSmoker’s breath saves caterpillars’ lives
Larvae of the tobacco hornworm caterpillar exhale nicotine, driving away predatory spiders.
By Susan Milius -
Health & MedicineVitamin E might limit Alzheimer’s decline
A trial of vitamin E in elderly veterans with Alzheimer’s shows promise for those in the early stages of the disease.
By Nathan Seppa -
PlantsKleptoplast
A cellular part such as a light-harvesting chloroplast that an organism takes from algae it has eaten.