All Stories
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SpacePlanet in the sky with diamonds
Scientists have discovered a Jupiter-sized orb with a mostly carbon atmosphere 1,200 light-years distant, the first time astronomers have detected such a world.
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TechDirty money 2: Expect traces of BPA
BPA showed up on 21 of the 22 greenbacks surveyed in a new study. And the clean dollar? It appeared quite new, suggesting that dollars only become contaminated as they circulate.
By Janet Raloff -
LifeJigsaw genetics
Fragments of a fetus's genome can be pieced together from the mother's blood to allow prenatal diagnosis of genetic diseases.
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Dirty money 1: Expect germs
China’s yuan banknotes are bacterial magnets, relatively speaking, while Australian dollars circulate virtually germfree. The difference traces to a number of factors — not least being what they’ve been printed on, a new international study concludes.
By Janet Raloff -
Health & MedicineNew blood test may predict some heart risk
People carrying high levels of a protein called cardiac troponin T are more likely to have heart failure or die from cardiovascular problems, two studies show.
By Nathan Seppa -
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SpaceCrab nebula outbursts shock astronomers
Short-lived gamma-ray flares recently recorded from the Crab nebula supernova remnant, known for its steady emissions, are perplexing researchers and forcing them to consider new models for particle acceleration.
By Ron Cowen -
SpaceBeast at galaxy core sits, lacking spin
New observations suggest that the Milky Way's central black hole rotates slowly or not at all, reinforcing its image as a gentle gravitational giant.
By Ron Cowen -
TechTerrorist-resistant ‘source’ of moly-99 hits the U.S.
Molybdenum-99 is the radioactive feedstock for the most widely used diagnostic nuclear-medicine isotope. On December 6, the first commercial batch of moly-99 that had been produced using a terrorist-resistant process arrived in the United States from a reactor in South Africa.
By Janet Raloff -
PsychologyConnected at church, happy with life
People who feel best about their lives combine religious identity with congregational friendships, a survey finds.
By Bruce Bower -
LifeFriendly fire blamed in some H1N1 deaths
A poorly targeted immune response to the 2009 pandemic flu virus caused young adults and the middle-aged to suffer more than usual.
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MathOutstanding, superlinear cities
By a new mathematical method, New York City proves average and San Francisco exceptional.