All Stories
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GeneticsExplainer: What is sickle cell disease?
Gene mutations can alter an individual’s hemoglobin in ways that curl their blood cells. This can cause painful sickle cell disease.
By Erin Garcia de Jesús and Janet Raloff -
AnimalsThe end of the dinosaurs appears to have come in springtime
Fish fossils from North Dakota suggest when the Chicxulub asteroid devastated Earth, triggering the mass extinction of dinosaurs and other species.
By Sid Perkins -
Health & MedicineExplainer: The body’s immune system
An army of cells — and their protein arsenal — work to keep us safe. Several squads of special forces possess unique superpowers to disable or kill intruders.
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TechScientists Say: Machine learning
Machine learning allows computers to learn new skills without programmers having to write out step-by-step instructions.
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ArchaeologyThe earliest known pants are surprisingly modern — and comfy
This 3,000-year-old garment was not only stylish but also functional. By recreating it, scientists also unraveled its complex and multicultural origins.
By Bruce Bower -
EarthThe Alps’ Matterhorn shows how much even big mountains sway
Such mountain sway data can help planners map high-risk zones for peaks, bridges or any large structures.
By Peg Lopata -
BrainIs the sky really blue? It depends on what language you speak
English speakers talk about color a lot but rarely about smell. Researchers are learning how those who speak other languages sense the world and why differences arise.
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BrainTeen inventors say: There’s got to be a better way
Finalists in the 2022 Regeneron Science Talent Search are revamping prostheses, earthquake safety systems and air travel.
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ClimateSatellites find big climate threats — ultra-emitters of methane
Eyes in the sky show many of the worst methane emitters are in countries that produce a lot of oil and gas, such as Russia and the United States.
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EarthLet’s learn about Earth’s secret stash of underground water
Groundwater provides drinking water to billions of people and is used to water crops worldwide.
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Science & SocietyInstagram influencers promote more unhealthy foods than other celebs
These findings could encourage new social media regulations to protect young users from being bombarded with unhealthy ads, says teen researcher.