The Curiosity rover was sent to Mars for about two years. It just passed 5,000 Martian days on worn wheels, still climbing. What those slow days add up to.
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Enceladus Ice Grains: Why One Grain Isn’t the Whole Ocean
Enceladus ice grains puzzled scientists for years. A new study says ocean droplets freeze slowly, sort their salts, then shatter. No life has been found.
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The Cosmic Dark Ages: A Suitcase-Sized Satellite Will Listen Behind the Moon for the Universe Before the First Star
The cosmic dark ages came before the first star. A suitcase-sized satellite called CosmoCube plans to listen for them from behind the Moon. Here is why.
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What Is Frisson? Why Music Gives You Chills
What is frisson? The chills a song gives you start before the big moment: your brain releases dopamine while it waits. Here is why, and why some never feel it.
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Is the Universe Infinite? What Flat Space Really Tells Us
Is the universe infinite? Space looks flat to within 0.2%, but flat does not prove endless. What scientists know, what they tested, and why we may never know.
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The Oldest Complex Life Fossils Only Show Up Where There Was Oxygen
The oldest complex life fossils, 1.75 billion years old, turned up only where Australia’s ancient sea had oxygen. Then they stayed there for a billion years.
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If the Whole Body Were an Eye: Physicists Find Difference Holds Networks Together
If the whole body were an eye, where were the hearing? A physics study found identical parts make networks less stable. Here is why your difference is needed.
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Does My Work Matter? Even 4-Year-Olds Can Tell
Does my work matter? Kids as young as 4 tried harder when told their work would be kept. Solomon hated his labour for that exact reason. Paul answered it.
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What Is Cognitive Dissonance? Its Famous Origin Story Has a Twist
What is cognitive dissonance? The doomsday-cult story behind the idea is now in doubt, and Luke 24 records followers who did the opposite: they walked home.
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Brain Consensus Building: Why a Lone Signal Fades Fast
Brain consensus building: two visual areas keep only what both agree on and let a lone signal fade in a fraction of a second. What it means and what it doesn’t.