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We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Using estrogen to combat persistent breast cancer
Estrogen therapy stymies breast cancer in some patients who have exhausted their other options, a new study finds.
By Nathan Seppa - Health & Medicine
Worm-inspired superglue
Researchers create a material that may one day be used to paste together bones in the body.
- Health & Medicine
Feds won’t cover PET scans during isotope crisis
One alternative procedure for scouting bone cancers is theoretically available, but currently may be an option only for people with deep pockets.
By Janet Raloff - Tech
How medicine is ‘barely managing’ the isotope crisis
Medicine is managing a prolonged and record shortfall in the principal diagnostic-imaging isotope by triaging the most urgent patients, substituting less effective procedures and working longer hours.
By Janet Raloff - Chemistry
Drugged money
U.S. greenbacks are especially effective at pocketing tiny traces of cocaine.
By Janet Raloff - Tech
Isotope crisis threatens medical care
Global production of the feedstock for the leading medical-imaging isotope is low and erratic, putting health care in jeopardy.
By Janet Raloff - Archaeology
Fire engineers of the Stone Age
New evidence indicates that people used fires to heat stones in preparation for making cutting instruments at least 72,000 years ago in southern Africa.
By Bruce Bower - Health & Medicine
Brain doesn’t sort by visual cues alone
Blind and sighted people’s brains sort the living from the nonliving in the same way, suggesting this ability may be hard-wired.
- Earth
Big Gulp, Asian style
Satellite data reveals that increased irrigation pressure is rapidly depleting groundwater in northern India.
By Sid Perkins - Health & Medicine
Bone-preserving drug passes tests in men, women
New drug limits bone fractures in elderly women and men fighting prostate cancer
By Nathan Seppa -
- Agriculture
Pesticide potency can depend on bug’s clock
The daily rhythms in gene activity can affect the toxicity of some poisons.
By Janet Raloff