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.
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A species that is an “apex” predator in one environment won’t necessarily remain so in another.
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Albert Einstein might have the answer.
Apartment buildings in New York City abut the Cross Bronx Expressway.
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Noise pollution is a serious problem, and cars make a lot of it. But roads are also a factor.
A great hammerhead shark’s two eyes can be 3 feet apart on opposite sides of its skull.
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The first hammerhead shark was likely the result of a genetic deformity. A biologist explains how shark DNA reveals hammerheads’ history.
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It’s all based on their diet and how they capture their food. But did you know some whales do have teeth?
Reconstruction of Haikouichthys ercaicunensis based on fossil evidence.
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A biologist explains how researchers nail down the age of ancient fossils thanks to a physical process called radioactive decay.
A nanographene molecule imaged by noncontact atomic force microscopy.
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A physicist explains how atoms arrange themselves into molecules – and how scientists are able to image these tiny bits of matter that make up everything around you.
The core of education is to enable young learners to be kind, giving members of society.
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The core principle of education is to enable students to become kind, giving and contributing members of their community and the world.
During ice ages, ice sheets like the one in Greenland have covered much of Earth’s surface.
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The Earth has had at least five major ice ages, and humans showed up in time for the most recent one. In fact, we’re still in it.
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It’s the oldest light in the universe.
Roaming the ancient seas eons ago, the megalodon shark eviscerated its prey with jaws that were 10 feet wide.
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A terrifying sight in ancient waters, the megalodon shark was once the most feared creature in the sea.
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Time dilation might seem like science fiction, but it’s not. There are astronauts circling the Earth right now who are experiencing it – though luckily nowhere near as much as Buzz Lightyear.
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Frilled sharks haven’t changed for about 80 million years! And while they may look a bit like snakes from a distance, they are actually much more similar to other sharks close up.
President William Howard Taft and his wife rode in this steam-powered automobile in 1909.
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This technology, popular when automobiles first caught on, had a short resurgence in the 1970s.
The Moon often looks enormous when it first rises because of what is known as the Moon illusion.
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The Moon illusion is what makes the Moon look giant when you see it rising over a distant horizon. An astronomer explains what causes this awe-inspiring trick of the mind.
Pluto was recategorized from a planet to a dwarf planet in 2006.
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A curious kid asks: Why does it matter if Pluto is a planet or a dwarf planet?