News
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Health & MedicineBrain stimulation alters depressive symptoms in mice
The findings may point the way toward more targeted treatments for depression in people.
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LifeFeces study gets the poop on gorillas’ diet
Chemical traces in animals’ droppings reflect shifts in recent food consumption.
By Tanya Lewis -
HumansLines in the sand may have been made for walking
The ancient Nazca culture’s celebrated desert drawings include a labyrinth meant to be strolled, not seen.
By Bruce Bower -
Planetary ScienceViolent past revealed by map of moon’s interior
A gravity survey by twin orbiters reveals how much the lunar surface was pummeled by meteorite impacts early in its history.
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Health & MedicineDrug breaks up Alzheimer’s-like deposits in mice
Recent failed trials of a similar approach in humans fuel skepticism that patients will benefit.
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SpaceLHC sees odd behavior in superhot particle soup
Coordinated motion in debris from lead-proton collisions may yield clues about quark-gluon plasma.
By Andrew Grant -
SpaceExtraterrestrial chorus heard in radiation belts
Van Allen probes capture sound of electromagnetic disturbances in Earth’s magnetosphere.
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Health & MedicineSmoking hurts teen girls’ bones
Adolescents who use cigarettes seem to accumulate less bone mineral than those who don’t.
By Nathan Seppa -
LifeContender for world’s oldest dinosaur identified
An African specimen suggests the lineage may have arisen 15 million years earlier than thought.
By Tanya Lewis -
AstronomyVoyager crossing superhighway to solar system exit
The latest milestone in a 35-year journey may signal an impending passage to interstellar space.
By Tanya Lewis -
LifeAmong bass, easiest to catch are best dads
Recreational fishing may be inadvertent evolutionary force, favoring cautious fish over better caretakers of the young.
By Susan Milius -
LifeGut bacteria may affect cardiovascular risk
An abundance of antioxidant-producing microbes seems to keep plaques from breaking free and causing heart attacks and stroke.