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32 stunning photos of auroras seen from spaceAuroras (also called the northern and southern lights) are visible from the ground after powerful solar storms, but these natural light shows look even more majestic from above. Here are 32 spectacular photos of auroras taken from space.
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22 jobs artificial general intelligence (AGI) may replace — and 10 jobs it could createArtificial Intelligence (AI) is set to improve the world for many — but others may lose out.
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32 scary parasitic diseasesParasites can cause a wide range of diseases in humans, ranging from short-term to lifelong.
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32 strange places scientists are looking for aliensFrom planets and moons in our solar system to dying stars and parallel universes, here are some of the far-out places scientists are searching for alien life.
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32 of the most colorful birds on EarthBirds are some of the most colorful animals on Earth, with a palette of rainbow tones to feast your eyes on. Here are our picks for some of our most flamboyant feathered friends.
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32 weird technologies that never took offWe've seen many big hitters capture our imagination, alongside a handful of oddities and misfits that were less successful.
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15 extinct giants that once roamed North AmericaCountdown Until the end of the last ice age, American cheetahs, enormous armadillolike creatures and giant sloths called North America home. But it's long puzzled scientists why these animals went extinct about 10,000 years ago.
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32 times lasers revealed hidden forts and settlements from centuries agoLasers have helped uncover ancient human-made structures the world over.
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Top total solar eclipses to look out for over the next decadeWant to experience totality again? Here are the next seven total solar eclipses across the world, from Alaska to Australia.
