News
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AnthropologyAncient DNA points to additional New World migration
Scientists have extracted a nearly complete genome from the hairs of a 4,000-year-old man, suggesting a new scenario for Asian migrations into the New World.
By Bruce Bower -
SpaceA new VISTA on stellar birthplace
A high-resolution panoramic image of the Orion star-forming region bodes well for the success of a new telescope dedicated to surveying large areas of the cosmos at infrared wavelengths.
By Ron Cowen -
Health & MedicineInflammatory bowel disease hikes blood clots
Study finds people with Crohn’s disease or ulcerative colitis have greatest risk during painful episodes.
By Nathan Seppa -
Materials ScienceA charge for freezing water at different temperatures
Experiments use positive and negative forces to control ice formation at temperatures well below the normal freezing point.