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Scientific American

Peeing Is Contagious among Chimps

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The Health Risks of Alcohol, a Red Dye Ban and Commercial Space Launches

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TikTok Ban Survives Supreme Court. What’s Next?

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How Trump Will Roll Back Climate and Energy Policy on Day One

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BMI Sidelined in New Obesity Definition That Favors Health Evaluation

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Los Angeles Fires Were Fueled by Climate Change

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SpaceX Starship Explosion Likely Caused by Propellant Leak, Elon Musk Says

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This Supermassive Black Hole May Harbor a Bizarre Undead Star

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Could Inflicting Pain Test AI for Sentience?

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These Prime Numbers Are So Memorable That People Hunt for Them

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How NASA Used the Hubble Space Telescope to Look at the Sun

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Linguists Point to Expressions of Pain as a Possible Universal Language

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Is Red No. 3 Harmful? How Does It Compare with Other Dyes?

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Climate Action Now Threatened by ‘Powerful Forces,’ Biden Warns

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What Caused the L.A. Wildfires? How Investigators Will Find Out

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The Supreme Court’s Trans Health Case Shows Why Patients Should Make the Decisions

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Blue Origin’s New Glenn Rocket Finally Takes Flight

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U.S. TikTok Users Flock to RedNote as Ban Looms

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Data Centers Run on Clean Energy Now Welcome on Publicly Owned Land

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Wildfires Started by Human Activities Are Often More Destructive

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Does Fact-Checking Work on Social Media?

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Migrating Birds Sing to Team Up with Other Species

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How the Polar Vortex Can Bring Arctic Blasts to the U.S.

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Visas for Guest Workers Can Spur High Technology and U.S. Jobs

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Government and Industry Response to Bird Flu Could Allow Disease to Evolve

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Blue Ghost, Third Private U.S. Lunar Lander, Launches to the Moon

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50,000 Scientists Urge Congress to Protect Research from Trump

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Venn Diagrams’ History and Popularity Outside of Math Explained

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Why Are Recurring Dreams Usually Nightmares?

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After Los Angeles Fires, Drinking Water Safety Is at Risk

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Why Urban Wildfires like L.A.’s Release Such Toxic Smoke

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Los Angeles Firefighters Risk Cancer from Urban Smoke

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Destructive Los Angeles Fires Explained in Photos

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Annual U.S. Dementia Cases Projected to Rise to 1 Million by 2060

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Health Care AI Requires a Lot of Expensive Humans to Run

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Exotic ‘Paraparticles’ That Defy Categorization May Exist in Many Dimensions

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Climate Opportunities in Greenland May Be Part of Trump’s Interest

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The Reason Wildfires in L.A. Were So Destructive and an Update on Public Health Outbreaks across the Globe

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U.S. TikTok Ban Looms as Supreme Court Hears Arguments

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Trump’s Erroneous Claims about the Los Angeles Fire Response, Debunked

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Bird Flu, Salmonella and Other Health Risks from Raw Eggs, Explained

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Hunters Disagree on the Threat of Chronic Wasting Disease in Deer

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Why We’re So Preoccupied by the Past

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Sky Sights to Watch in 2025

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Will We Find Planet Nine with the Vera Rubin Observatory’s New Telescope?

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2024 Is Officially the Hottest Year on Record

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Los Angeles Fires Could Push California’s Insurance System to the Brink

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Katalin Karikó’s Nobel Prize–Winning Work on mRNA Was Long Ignored—And Led to COVID Vaccines

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The Fate of NASA’s Mars Sample Return Program May Be Decided in 2026

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Bad Sleep Leaves the Brain More Vulnerable to Intrusive Thoughts

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