All Stories
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ArchaeologyAn ancient healer reborn
A research team in Israel has uncovered one of the oldest known graves of a shaman. The 12,000-year-old grave hosts a woman’s skeleton surrounded by the remains of unusual animals.
By Bruce Bower -
MathUnknotting knot theory
New techniques are beginning to unravel the mysteries of knots, revealing a great mathematical superstructure in the process.
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ChemistryFaucets Destined for Brassy Changes
Although new standards poised to take effect in a few years will reduce the lead-leaching risk from drinking water faucets, showerheads and many other water dispensers around will remain unregulated.
By Janet Raloff -
SpaceHubble repair mission delayed yet again
Even as the Hubble Space Telescope was able to snap an image after several weeks of idling, a mission to visit and upgrade Hubble suffered another delay.
By Ron Cowen -
TechLead-free? Faucets are anything but
Featured blog: Users of brand-new buildings on a major university campus were surprised to discover high concentrations of lead in the water. Faucets were the culprit.
By Janet Raloff -
AnimalsBat syndrome’s telltale white nose-mold new to science
Newly cultured fungus named as a suspect in deadly white-nose syndrome
By Susan Milius -
HumansStone Age innovation out of Africa
Researchers have dated two innovative Stone Age tool industries in southern Africa that may have helped spur human migrations out of Africa.
By Bruce Bower -
LifeThe Iceman’s mysterious genetic past
Scientists say that they have identified the complete mitochondrial DNA sequence of the 5,000-year-old Tyrolean Iceman, whose body was found protruding from a glacier in 1991.
By Bruce Bower -
ChemistryHoley Copper Pipes!
Engineers are homing in on germs and other surprises behind the development of tiny holes in home water pipes.
By Janet Raloff -
SpaceMESSENGER glimpses Mercury’s Western hemisphere, new features
The results are in from MESSENGER’s second flyby of Mercury, one of the least-explored planets in the solar system.
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Health & MedicineA sugar helps E. coli go down
Some harmful strains of E. coli might rely on something sweet to do harm.
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AnimalsFarm chemicals can indirectly hammer frogs
A widely used agricultural weed killer teams up with fertilizer to render frogs especially vulnerable to debilitating parasites.
By Janet Raloff