News
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AstronomyElliptical duet rides the Kuiper belt
Follow-up observations of an icy object in the Kuiper belt and its moon reveal that the two bodies revolve about each other in the most elongated orbit of any pair of objects in the solar system.
By Ron Cowen -
Health & MedicineVirus gives cancer the cold treatment
A genetically engineered version of a common cold virus appears to kill cancer cells without harming healthy tissue.
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PhysicsNot-So-Neutral Neutron: Clearer view of neutron reveals charged locales
A sharp, new picture of the neutron reveals that rather than being uniformly electrically neutral, the particle contains regions of positive and negative charge.
By Peter Weiss -
Materials ScienceSelf-Sutures: New material knots up on its own
Researchers have used a new biodegradable material to make surgical sutures that knot and tighten themselves as they warm to body temperature.
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AnthropologyAttack of the Ancestor: Neandertals took a stab at violent assaults
The pieced-together fragments of a 36,000-year-old Neandertal skull reveal a bony scar caused by a blow from a sharp tool or weapon.
By Bruce Bower -
Health & MedicineDeadly Pickup: Enzyme permits plague germ to ride in fleas
Acquisition of a gene that enables the plague bacterium to live inside blood-sucking fleas may have set the stage for the Black Death.
By John Travis -
EarthThe Silent Type: Pacific Northwest hit routinely by nonquakes
Once every 14 months or so, portions of coastal British Columbia and northwestern Washington State experience a slow ground motion that, if released all at once, would generate an earthquake measuring more than 6 on the Richter scale.
By Sid Perkins -
AstronomySuper Wallops: Tracking the origin of cosmic rays
Two new studies shed light on the longstanding mystery of where cosmic rays—the energetic charged particles that bombard our galaxy—originate.
By Ron Cowen -
Health & MedicineRisk Factor: Genetic defect hikes breast cancer threat
A mutation already linked to several types of cancer doubles the risk of breast cancer in a woman and multiplies men's slight risk of the disease even more dramatically.
By Nathan Seppa -
Health & MedicinePut Out to Pasture: Strategy to prolong antibiotics’ potency
The use of antibiotics to promote growth in farm animals hastens the end of their medical effectiveness.
By Ben Harder -
Health & MedicineShocking findings
Implanted defibrillators reduce the occurrence of sudden death by about a third among people who had previous heart attacks and continue to suffer impaired heart function.
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EarthSmog’s ozone spawns funky carpet smells
Strange, unpleasant odors may emanate from carpets for years due to reactions caused by exposure to smoggy air.
By Janet Raloff