All Stories
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EarthTrailing dust devils
Whirlwinds leave dark paths behind by sucking sand grains clean.
By Sid Perkins -
LifeGenetics redraws marsupial family tree
A new analysis traces the group’s origin to South America.
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ChemistryMore evidence that BPA laces store receipts
People interested in limiting exposure to bisphenol A — a hormone-mimicking environmental contaminant — might want to consider wearing gloves the next time a store clerk hands over a cash-register receipt. A July 27 report by a public-interest research group has now confirmed many of these receipts have a BPA-rich powdery residue on their surface.
By Janet Raloff -
Materials ScienceErasing wrinkles, the physicists’ way
Researchers study how folds and other creases disappear.
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Food for Mars
Astronauts may have to survive in orbit for months dining on a really limited menu of processed foods and reconstituted beverages served from oh-so-glamorous plastic pouches. Luckily, even the International Space Station can restock its pantry several times a year because these foods are relatively perishable. Which explains the problem NASA faces in planning for really long missions — like a trip to Mars.
By Janet Raloff -
EarthResearchers create global map of tree height
A new map shows forest height around the globe and will improve estimates of how much carbon is stored in trees.
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Particle PhysicsNew data suggest a lighter Higgs
Fermilab results heat up the race for an elusive particle.
By Ron Cowen -
Health & Medicine‘Housekeeping’ proteins may set aging limit
Aging cells may seal their fate by keeping worn-out proteins when they sprout offspring.
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AstronomyHeftiest stars discovered
At more than 200 times sun’s mass, this giant sets a new record.
By Ron Cowen -
MathSwarming locusts impossible to predict
A mathematical analysis shows that random factors underlie the insects’ movements across the landscape.
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PlantsExplosions, mushroom clouds — all good for short moss
BLOG: Sphagnum reproduces with a bang that compensates for life so close to the ground.
By Susan Milius