How Many Stars Are There in the Universe?
How Many Stars Are There in the Universe? No one knows how many stars there are in the universe. We cannot see all the stars, much less count them. It is estimated that...
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Can Dogs See Colors?
Can Dogs See Colors? There’s a common misconception that dogs can only see in monochrome and use varying brightness levels to identify the outlines of items. Yet...
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Is It Natural to Swing Your Arms When Walking?
Is It Natural to Swing Your Arms When Walking? For a long time, scientists thought that swinging your arms while walking served no purpose. Their best guess was that it...
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Why Dogs Always Have Wet Noses, and Can Sniff Things out Better than Humans?
Why Dogs Always Have Wet Noses, and Can Sniff Things out Better than Humans? Well, scientists think they’ve found the answer to both those questions. Experts say...
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What Is a Black Hole in Space?
One of the strangest mysteries of outer space is a “black hole.” A black hole is a place in space where gravity is very strong as the matter is squeezed into a tiny...
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