Most of ISON, a huge comet formed at the birth of the solar system, apparently did not survive Thursday's encounter with the sun, NASA said. Scientists detected the comet last year and had hoped to continue studying it for information to be mined from its "primordial ices."
Scientists have identified special cells in the brain's hippocampus that mimic a trick of some digital cameras. These cells automatically 'tag' the memory of each event in our lives with information about where that event took place — the better to recall, perhaps, where we left our lost keys.
Today's a day to share, so that's why I want to share this moment: Two girls are on a city street, trying to figure out who's going to be friends with the nastiest person they can think of. Not an easy problem, but they solve it. Gorgeously.
For a class project, three engineering students at Rice University devised an inexpensive robotic arm to help a teenager with an uncommon bone disease. The work took two years to complete, far longer than the class that was its starting point.
Women with naturally higher levels of estrogen after menopause don't have better memory or mental skills, Stanford researchers say. It's yet another dent in the long-held belief that the hormone is linked to mental sharpness.
Even as the Supreme Court takes up the issue of emergency contraception coverage, a new study suggests the most popular form of the drug might not work for most American women. It seems one formulation of the popular drug loses effectiveness in women who are obese or who weigh over a certain amount.
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