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Scientific American

NASA Crew-11 astronauts reflect on ISS medical evacuation and future of human spaceflight

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‘Bat accelerator’ unlocks new clues to how these animals navigate

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Mystery Prototaxites tower fossils may represent a newly discovered kind of life

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New JWST images show Helix Nebula in astonishing clarity

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Oldest cave art ever found discovered in Indonesia

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NASA quietly ends financial support for planetary science groups

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Deer may see hidden glowing signs in forests

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Watch three solar prominences erupt in epic video

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Can science explain consciousness?

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California wildfire smoke linked to increased autism diagnoses, new study finds

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RSV is surging, but antibody shots and vaccines can protect babies

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World has entered an era of ‘global water bankruptcy,’ U.N. warns

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Why did Jeffrey Epstein cultivate famous scientists?

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As the U.S. marks a year of measles outbreaks, is the disease back for good?

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Is AI really conscious—or are we bringing it to life?

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Can a ‘brain in a vat’ be conscious?

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Your guide to 29 wildly different theories of consciousness

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Which dog breed stereotypes are true? Here’s the science

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What is consciousness? Science faces its hardest problem yet

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Science crossword: Consciousness carriers

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Readers respond to the October 2025 issue

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Poem: ‘E = mc²’

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Math puzzle: A winning loser

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Life’s evil twins—mirror cells—could doom Earth if scientists don’t stop them

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JWST could finally spot the very first stars in the universe

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How extremophile molds are destroying museum artifacts

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Heal injuries faster with new science

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February 2026: Science history from 50, 100 and 150 years ago

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A bright light in the dark

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New brain training study could help explain the placebo effect

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First-ever flexible tool use seen in a cow suggests livestock are smarter than believed

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Meet ‘Baseodiscus the Eldest,’ a record-setting ribbon worm more than 27 years old

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Spiders build giant decoys to scare predators from webs

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EPA rule sparks air quality concerns, cancer survival hits record high, and NASA executes historic space evacuation

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NASA’s Artemis II mission to the moon is inching toward the launch pad

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World models could unlock the next revolution in artificial intelligence

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This gene may determine if dogs have long, floppy ears or short, study ones

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RFK, Jr., shifts focus to questioning whether cell phones are safe. Here’s what the science says

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It’s so cold in Florida that iguanas might rain from the skies

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NASA’s historic Artemis II moon mission is almost ready to launch

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Astronomers Spot Mysterious Bar-Shaped Cloud of Iron Inside an Iconic Nebula

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Why Are There No Green Stars?

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What Is Beige Fat, and Is It Healthy?

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In Venezuela, Big Oil Collides with a Hotter Planet

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Kratsios Calls Patchwork State AI Laws ‘Anti-Innovation’ at House Science AI Hearing

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Incredible Cheetah Mummies Show Big Cats Once Roamed the Arabian Peninsula

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A Controversial U.S. Study of Hepatitis B Vaccines Will Continue in Africa, HHS says

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JWST’s ‘Little Red Dots’ May Be ‘Black Hole Stars’

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At 25, Wikipedia Now Faces Its Most Existential Threat—Generative A.I.

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Mosquitoes Show a Clear Preference for Human Blood after Deforestation

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