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Believe it or not, this sort-of happened before in Earth’s history – and now we have the Moon.
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Snails use their slime to help them move, stop them drying out and to scare off predators.
Kindergarten students in 1952 race out of school in Los Angeles, eager to celebrate Halloween.
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From its origins as a Celtic pagan ceremony to its celebration of all things gruesome and ghoulish today, Halloween has been reinvented over the centuries.
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Do you know someone who’s had lots of birthdays? That doesn’t always make them old.
Soviet leader Nikita Krushchev, left, met with U.S. President John F. Kennedy in Vienna in 1961.
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The US and the Soviet Union never engaged in direct combat, but their influences were felt worldwide, including in armed conflicts involving other nations.
Amazon workers sort packages for delivery on East 14th Street in New York City, July 12, 2022.
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The rise of e-commerce means billions of packages are delivered in the US each year. That creates traffic and pollution, but urban freight researchers are finding better way to get goods to customers.
Something people today have in common with civilizations past: a love of music.
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For thousands of years, music has been an essential part of the human experience.
How can someplace you’ve never been feel so familiar?
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While people have wondered about déjà vu for a long time, only recently have scientists started experimentally investigating what might trigger it.
Cash is pretty convenient.
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Paying for the stuff you want with currency is way easier than relying on chairs you made or chickens you raised.
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Earth has liquid rock inside. Here’s what happens to that rock to make lava happen.
Giant’s Causeway in Northern Ireland features around 40,000 exposed polygonal columns of basalt in perfect horizontal sections.
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Nature begins forming patterns at the molecular level – and sometimes they grow to enormous sizes.
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Strangely behaving matter could one day explain some of the mysteries of space.
Walking vertically – or even upside down – is a piece of cake for ants.
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Ant feet are equipped with an array of tools – from retractable sticky pads to claws to special spines and hairs – enabling them to defy gravity and grip virtually any surface.
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All the evidence points to one thing: humans and woolly mammoths certainly lived side by side. But did humans hunt mammoths too?
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Seashells don’t make the noise of the ocean. Here’s what’s really going on.
Science shows that humans are happier and healthier around other animal and plant species.
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People wouldn’t last long without the countless other species we depend on for survival.
Solutions to Einstein’s famous equations back in the 20th century describe ‘wormholes,’ or tunnels through space-time.
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An astrophysicist explains what wormholes are and how these theoretical space-time tunnels have popped up in the solutions to a set of decadesold equations.
Dogs use their tails to communicate.
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An anthropologist explains some of the many ways animals use their tails, from balancing as they walk to attracting a mate.
Humans are the only animals that express their thoughts in full sentences.
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A language scientist explains that talking was never invented but has evolved over hundreds of thousands of years.
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Did you know enamel is the hardest substance in the body? And if you feel pain, it could mean there’s a problem deep inside your tooth.