All Stories
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ClimateThis scientist wants to motivate you to fight climate change
Getting lost in science fiction helps Shahzeen Attari reimagine what our future could look like.
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SpaceThis ‘Sombrero’ stole a big galaxy
The Sombrero Galaxy is an odd spiral galaxy that outshines all others within 35 million light-years of Earth. Its bright, iron-rich halo suggests it consumed one or more large galaxies.
By Ken Croswell -
Health & MedicineScientists Say: Outbreak, Epidemic and Pandemic
These terms can describe what is happening as a disease spreads across communities, countries and the world.
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Health & MedicineExperts rethink need for X-ray shielding of patients
For close to 70 years, workers who perform X-ray scans of the body have been advised to shield sensitive tissues with lead 'aprons.' That may soon stop.
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Health & MedicineNew success in treating allergies to peanuts and other foods
Nearly 8 million U.S. children have food allergies, about two per classroom. The good news: Better ways to treat them are emerging.
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Health & MedicineFood allergies can trigger stress and anxiety
From peanut-free lunch tables to unsympathetic relatives, food allergies can cause considerable stress for a kid. As they transition toward independence, parents and counselors can help.
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Health & MedicineExplainer: What are allergies?
Sometimes the body’s immune system works too well, like a smoke alarm that blares every time you cook pizza. The results can range from uncomfortable to potentially life-threatening.
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Health & MedicineTesting the power of touch
We pet dogs with our fingers, not our arms or backs. Our fingers are more sensitive to touch. But how do we know? Here's how you can test that.
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PsychologyStudy links racism with signs of depression in Black teens
Among teens, just two weeks of frequent racial discrimination was enough to worsen signs of possible depression, a new study finds.
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Materials ScienceNew twist can hush — even cloak — some sounds
Swiss engineers developed clear, spiral structures to make a new sound-dampening system. Those twists block some vibrations and lets others through.
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AnimalsDrones might one day capture a dolphin’s breath in midair
High-speed footage of dolphin spray reveals that droplets blast upward at speeds close to 100 kilometers per hour.
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PhysicsScientists Say: Decibel
A decibel is a unit of measurement that describes a sound’s volume. It’s used for sounds that are in the range of human hearing.