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How your brain can turn your own reflection into something unrecognizable
Staring at yourself in the mirror can create an illusionary effect, distorting your features to the point of appearing fantastical
科学美国人
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How to ‘fall back’ this weekend without losing your mind
Time changes are more disruptive to our health than you might think. Here are some tips for a smooth transition
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Boo! See the universe’s spookiest sights in time for Halloween
From ghosts to skeletons and even spiders, the cosmos is full of scary surprises
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Math Puzzle: Mysterious pyramid
Can you ascend this unusual pyramid?
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The world’s biggest cities are sinking. Is yours one of them?
Global cities are subsiding by up to several inches a year, an exhaustive new survey shows
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‘Paleo lighting’ can fix your brain’s clock after daylight savings
The clocks falling back this weekend will give you the opportunity to sleep like a caveman
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This October is on track to be the hottest ever recorded
Global projections suggest this October will be 1.76 degrees Celsius higher than preindustrial averages
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An exclusive conversation with the developer of REA, the viral AI reverse engineering tool
An AI tool called REA can take apart software that isn’t meant to be opened in printers, smart TVs, cars, and more. Its pseudonymous creator wants everyo…
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What’s the scariest thing in the universe?
It’s Halloween, and nothing is scarier than our terrifying universe
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The science of why we’re obsessed with vampires
What vampire stories reveal about changing fears, identities and human nature
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Oldest known Mars rock is a ‘Rosetta stone’ for the Red Planet’s watery past
Blasted off Mars by a giant impact long ago, the meteorite Teghaza 001 eventually fell to Earth in the Sahara Desert. Now it’s revealing previously hidde…
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Scientists can now rewire living brains
The tool could eventually lead to an entirely new approach for treating mental health
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Five things you need to know about the Trump administration’s rollback of methane regulations
The gas is a major driver of climate change
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Mathematicians find an infinite number of Ramanujan equations
Knots show how to generate infinitely many formulas of a kind developed by the visionary genius
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Can the world’s religions survive the existence of aliens?
Finding alien life could shake some people to their very souls, but different religions can take very distinct approaches to the existence of extraterrestrial…
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RFK, Jr., loosens restrictions for six popular peptides, bypassing the FDA
Under the new policy, compounded combinations of these unproven peptides can now be dispensed by certain pharmacies
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Landmark study finds three in four NFL players die with CTE
The staggering new estimate is based on an analysis of thousands of former players’ medical records
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Sci-fi horror collides with small-town politics in John Scalzi’s Monsters of Ohio
Scientific American talks to author John Scalzi about his tentacle-filled 20th novel, its balance of hope and cynicism—and the possibility of a Chappell…
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Animal-borne Shamonda virus infects and kills a human for the first time
The potential for a wider outbreak is low, but experts are still investigating how the disease-causing virus leaped from animals to humans in the first place
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7 spooky bat facts—right in time for Halloween
Bats deserve a little more love
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Why science is on the ballot in the 2026 midterm elections
From Medicare for All to research grants, science-driven issues are playing a role in the midterm elections
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The Vera C. Rubin Observatory may have just discovered our solar system’s sixth dwarf planet
Located farther away from Earth than Pluto, the object was hidden in the light of the Milky Way’s stars
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OpenAI just scooped human researchers on a million-dollar quantum math problem
Another bombshell result shows how artificial intelligence is fueling fierce competition at the frontiers of math and physics
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How a 16th century pirate accidentally spawned a centuries-old math problem
A question posed by Sir Walter Raleigh about cannonballs inadvertently led to a puzzle that mathematicians have been trying to solve for centuries