All Stories
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Health & MedicineDose of extra oxygen revs up cancer-fighting immune cells
Extra oxygen helps immune cells shrink tumors in cancer-ridden mice.
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HumansAncient jaw may hold clues to origins of human genus
A 2.8-million-year-old fossil from Ethiopia raises questions about the origins and evolution of the human genus, Homo.
By Bruce Bower -
AnimalsInsects may undermine trees’ ability to store carbon
Insects eat more leaves on trees grown in carbon dioxide-rich environments than those grown without the extra CO2. That may undermine forests as carbon sinks in the future.
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PhysicsWhy lattes are less prone to spills than regular coffee
Foam dampens liquids’ sloshing, keeping keeps lattes and beer from spilling so easily, researchers find.
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AnimalsHow pigeons bob and weave through obstacles
When navigating an obstacle course, pigeons weigh energy efficiency against the danger of collision, research finds.
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EarthVolcanic lightning forges tiny glass balls from airborne ash
The lightning that crackles through volcanic plumes can melt ash into tiny glass beads.
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AstronomyHundreds of galaxies seen in a new 3-D view of the universe
A new instrument lets astronomers measure the distances to hundreds of galaxies at once, looking back across the age of the universe.
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NeuroscienceBrain cells predict opponent’s move in game-playing monkeys
Newly discovered brain cells help monkeys predict whether a companion will cooperate.
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Health & MedicineDespite risks, vaccine delay requests are common
A survey of pediatricians and family doctors finds parents frequently put off vaccines for babies even though doctors warn it can place the children at risk of illness.
By Nathan Seppa -
PlantsPlant growth patterns changing on much of Earth’s surface
More than half of Earth’s land surface has seen major changes in factors such as leaf-on date and how much vegetation grows in a season.
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PlantsTropical plant knows whose bill is in its flowers
A rainforest plant avoids inbreeding by accepting pollen only from hummingbird species that must travel to reach it.
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Quantum PhysicsTrying to get the down-low on gravity
A twist on a classic quantum mechanics experiment could lead to the discovery of elusive gravitons.
By Andrew Grant