Humans
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ChemistryChemists have unlocked the secrets of long-lasting Roman concrete
By searching ancient texts and ruins, scientists found a concrete recipe that could make buildings stronger — and help address climate change.
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AgricultureNative Amazonians make rich soils — and ancient people may have too
Modern Amazonians make nutrient-rich soil from ash, food scraps and burns. The soil strongly resembles ancient “dark earth” found in the region.
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Health & MedicineScientists Say: Kidney
The kidneys remove waste and excess water from the blood, forming urine.
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PsychologyThere’s a real upside to knowing you could be wrong
We’re often certain that what we believe is true. But questioning those beliefs, as Galileo did, can help us learn better — and even perform better on tests.
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Health & MedicineLet’s learn about allergies
Allergies are caused by the body’s immune system overreacting to harmless substances.
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Health & MedicineNew brain scans may show if a concussion has not yet healed
Concussions change certain brain waves, and delta waves may be the best signs of when teens can return to competitive sports.
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ArchaeologyMinding your mummies: The science of mummification
In this science project, you will learn about the rituals and science of mummification by mummifying a hot dog.
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Health & MedicineHigh school scientists tackle community health and safety risks
Three finalists in the 2023 Regeneron Science Talent Search aim to improve suicide risk assessment, treatment of sickle cell disease and more.
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Science & SocietyHow daylight saving time throws off your internal clock
Turning the clock ahead knocks our bodies and brains out of sync with the sun. That leads to many potential health issues.
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ArchaeologyCarvings on Australia’s boab trees reveal a people’s lost history
Archaeologists and an Aboriginal family are working together to find and document a First Nations group’s lost ties to the land.
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ArchaeologyAmerican democracy arrived long before Columbus did
Indigenous peoples of the Americas developed self-rule long before the pilgrims arrived or the U.S. Constitution was written.