News
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AstronomyRenegade stars in sun’s neighborhood
Some stars in the neighborhood of the sun may be renegades from the center of our galaxy.
By Ron Cowen -
Health & MedicineChildhood trauma raises risk of heart disease
A childhood filled with psychological or physical tribulations contributes to one's risk of developing heart disease as an adult.
By Ben Harder -
Materials ScienceAnyone want to knit a microscopic sweater?
Microscopic polymer tubes can tangle themselves into a new and possibly useful structure—tiny "yarn balls" that flatten out and partly unravel in an electric field.
By Peter Weiss -
PaleontologyFossil birds sport a new kind of feather
Two fossil specimens of a primitive, starling-size bird that lived about 125 million years ago have tail feathers that may hold the clues to how feathers originated.