All Stories
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GeneticsYoung sunflowers keep time
The plants don’t just use light to follow the sun. An internal clock helps their stems bend as the sun moves across the sky.
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AnimalsCool Jobs: Linking animal health to human health
Scientists who watch out for diseases in wild animals also can play a role in keeping people from getting sick.
By Liz Devitt -
Health & MedicineGrandparents’ diet could be a weighty issue for grandkids
Australian scientists have found that fat mice can pass on a heightened risk of obesity to their sons and grandsons.
By Dinsa Sachan -
GeneticsExplainer: What is epigenetics?
Epigenetics is the study of molecular “switches” that turn genes on and off. Tweak those switches and there could be big health consequences.
By Janet Raloff -
Archaeology‘Cousin’ Lucy may have fallen from a tree to her death 3.2 million years ago
A contested study suggests that Lucy, a famous fossil ancestor of humans, fell from a tree to her death.
By Bruce Bower -
Science & SocietyWhat does a scientist look like? You!
We’re writing a feature on women in science, technology, engineering and math. Are you one? Share your story with us!
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Health & Medicine‘Smart’ sutures monitor healing
Coatings added to the threads used to stitch up a wound let researchers use electrical signals to monitor a wound’s healing — even one covered by a bandage.
By Sid Perkins -
EnvironmentScientists Say: Aufeis
Water keeps flowing underground even in the coldest Arctic winters. But when it comes to the surface, it chills out and forms large layers of ice — called aufeis.
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SpaceSome white dwarf stars point to possible dark matter
Certain white-hot stars are cooling too fast for scientists to explain — unless they consider the presence of “axions.” These never-seen, but suspected particles could be shuttling away the extra energy from these cooling dwarf stars.
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BrainOur eyes can see single specks of light
The human eye can detect a single photon. This discovery answers questions about how sensitive our eyes are. It hints at the possibility of using our eyes to study issues of quantum-scale physics.
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A Day in the Life: Arctic ecologist
Ever wonder what a scientist in the Arctic does all day? Mary Kate Swenarton scrubs rocks, catches fish and measures stream flow, depth, temperature and more.
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AnimalsBeetles offer people lessons in moisture control
Taking tricks from a beetle, researchers are designing surfaces that collect water from the air or resist frost buildup.
By Sid Perkins