Mars' Valles Marineris is an enormous crack that dwarfs the Grand Canyon. Scientists are still baffled as to how it was formed but here's what they know so far.
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There is probably a good number of people who would prefer their days and nights to simply be pleasant -- not too hot, not too cold, just enough rain.
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Anybody who's observed a hummingbird in action has probably been impressed -- the tiny creatures seem to behave more like insects than birds.
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We've all heard that there can be too much of a good thing, mostly in regard to the pleasures of life. Come to find out, it also applies to vegetables.
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The idea of intelligent machines is something from science fiction, but one Google engineer says the company has created a sentient chatbot.
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Another ice age would completely alter the geography of planet Earth, and change how we live forever. Here's what would happen if Earth had another ice age.
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There's a popular myth that says crocodiles are immortal, but that's not actually true. Here's the story behind crocodile immortality.
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The more one reads about radiation, the more terrifying its fierce toxicity becomes. Here is what happens when your body is exposed to radiation.
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Human beings have long evidenced a yen for exploration. Whether climbing a hill to see what's on the other side, or crossing an ocean -- what's out there?
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The cell phone digital camera is now an essential item on phones. But, they started as NASA, and here is how they managed to make the first digital camera.
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Never mind who's faster, Superman or The Flash. When it comes to geography and biology (even history), animals have some contenders for most speedy.
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When we think of pyramids -- the structures, not the schemes -- we often think of the works of Ancient Egypt. But there's something even older out there.
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Microplastics remain one of the environment's greatest threats, and scientists are currently trying to figure out a solution to the microplastic epidemic.
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For years, the Galápagos Islands have provided the world an opportunity to peer back through the millennia and see how and why certain animals change.
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International astronauts might hail from a variety of different countries, but they are all required to learn Russia. Here's why they must speak Russian.
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The closest living relative to the elephant is a furry-faced, four-legged mammal that looks more like a guinea pig than it does its nearest family.
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Human saliva is a lot of things: wet, slimy, and, many people would say, gross. But did you know human saliva could also potentially be venomous?
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One of the most beautiful woodland sights is a nest full of sky blue robins' eggs peaking up out of the brown and green, and this trait is unique to birds. Why?
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Although they seem as though they are fairly steady, a comparison of photos will demonstrate how much human bodies change over time. How about over a day?
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Earth won't suddenly run out of air in a single day; it'll be a much slower process. And a hint of Earth's distant future comes from its distant past.
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Eating is something that just about all of us have in common. No wonder there are so many urban legends centered on food consumption and its consequences.
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With that great big universe out there, you're bound to find enormous variations in planetary systems and planetary conditions themselves -- some quite extreme.
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Elephants are one of the most beloved animals on the planet. They show a high level of intelligence and they can even communicate in this fascinating manner.
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Scorpions induce some level of fear in most people. But, these enigmatic creatures have a fluorescent glow at night and scientists are trying to work out why.
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There's a widely held belief that everyone across the planet swallows spiders in their sleep. So is it true? Let's take a look at what's behind it.
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Before there was scientific knowledge, the ancients used myth to understand the world. Here is the mythical nursing mother story that named the Milky Way.
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The more that's learned about various types of bees, the more fascinating they become. Colonies, social roles, environmental impact -- and flight capabilities.
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