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Scientific American

U.S. Plan to Drop Some Childhood Vaccines to Align with Denmark Will Endanger Children, Experts Say

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Disney and OpenAI Signal the Arrival of AI Video Streaming

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The Last Meteor Shower of 2025 and the Winter Solstice Align This Weekend

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Offshore Wind Farm in China Becomes a Haven for Oysters, Barnacles, and More, Study Finds

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NASA’s SPHEREx Just Dropped Its First Full-Sky Map, and the View Is Dazzling

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The Top 10 Math Discoveries of 2025

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If I Stop the World, Will I Melt with You?

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How Scientists Are Decoding Hawaiian Monk Seal Communication

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Here’s How Much Practice You Need to Become the Best in the World

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Trump Administration Moves to Severely Curtail Access to Gender-Affirming Care for Minors

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Satellites Used to Have Months to Avoid Collisions—Now They Have Days

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Two Möbius Strips Combine to Create a Bizarre Object That Only Exists in 4D

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Igloos on Mars? How Future Astronauts Could Use Ice to Survive

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10 Mind-Blowing Brain Discoveries from 2025

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Excerpt—The Great Shadow, by Susan Wise Bauer

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Jared Isaacman Confirmed to Head NASA at Pivotal Moment for the Space Agency

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Scientists Are Baffled by This Bizarre Lemon-Shaped Exoplanet

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New Views of Saturn’s Moon Titan and Jupiter’s Moon Europa Complicate Ocean Worlds Theory

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Scientists Denounce Trump’s Plan to Kill Crucial Atmospheric Science Center

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Why a Critical Orca Community Is Slipping toward Extinction

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Strange Cosmic Blast May Be First-Ever Superkilonova Observed

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Ancient Bees Burrowed Inside Bones, Fossils Reveal

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The Arctic Is in Dire Straits, 20 Years of Reporting Show

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New Flu Variant May Be Triggering Spike in Severe Disease

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RFK, Jr.–Backed Lyme Disease Conspiracy Theory May Be Probed under New Bill

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Scientists Devise New Plan to Study the Most Exciting Rock on Mars

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Math Puzzle: Wrangle the Rectangles

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How to See Interstellar Comet 3I/ATLAS as It Swings by Earth One Last Time

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What Your Sleep Profile Reveals about Your Health

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These Orcas Are on the Brink—And So Is the Science That Could Save Them

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The Hype behind Expensive Probiotic Supplements

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Science Crossword: Pointing South

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Science Carries On. Here Are Our Top Topics for 2026

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Readers Respond to the September 2025 Issue

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Poem: ‘Large Hadron Collider,’ ‘Maxwell’s Demon’ and ‘Music for the Heat Death of the Universe’

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Mysterious Bright Flashes in the Night Sky Baffle Astronomers

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Meet Your Plastic Pal

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Meet Your Future Robot Servants, Caregivers and Explorers

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January 2026: Science History from 50, 100 and 150 Years Ago

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Interoception Is Our Sixth Sense, and It May Be Key to Mental Health

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Heart and Kidney Diseases, plus Type 2 Diabetes, May Be One Illness Treatable with Ozempic-like Drugs

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Global Warming Could Skew Reptile Sex Ratios and Lead to Extinctions

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RNA May Be Common throughout the Cosmos, New Study Suggests

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Getting a COVID Vaccine while Pregnant Slashes Risk of Premature Birth, Major New Study Finds

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How Rising Rates of Uninsured Children Will Increase Pediatric Cancer Deaths

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Videos Show Hummingbirds Jousting Like Medieval Knights in Rare Mating

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2025 Nears Climate Heat Record, Mpox Variant Discovered, and Hobbit Extinction Explained

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Trump Officials Keep Comparing the U.S.’s Vaccine Schedule to Denmark’s. They’re Missing the Point

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How Conifers and Christmas Trees Secretly Shaped U.S. History

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Why Humanoid Robots and Embodied AI Still Struggle in the Real World

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