News
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SpaceSuperhot solar mystery may be solved
Jets of hot gas heat the sun’s nebulous outer atmosphere to millions of degrees, well above the temperature on the surface, a new study suggests.
By Ron Cowen -
PaleontologyAn ammonite’s last supper
A detailed X-ray image of a fossil reveals an ancient marine creature’s diet.
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LifeSpider sex play has its pluses
In the tricky world of arachnid mating, messing around with not-quite-mature females yields later benefits.
By Susan Milius -
Health & MedicinePossible relief for irritable bowel
Those taking an antibiotic whose effects are localized to the intestines fared better than patients getting a placebo pill, two trials find.