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Space Trivia

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If stargazing is your jam and you know that you could be the next Neil deGrasse Tyson, this celestial trivia quiz will rock your whole galaxy! Are you ready to shoot for the stars?

E = mc2: What Does Einstein's Famous Equation Really Mean?

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Einstein's formula for relativity is one of the most famous formulas in the world. Learn about Einstein's formula in this article.

7 Eye-catching Facts About the Bright Star Vega

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Even if you've never looked through a telescope, you've probably seen Vega, one of the brightest stars in our galaxy. In fact, thousands of years ago, Vega was our North Pole star, and will be again in the future.

How Do We Find Things in the Blackness of Space?

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How are the exact positions of objects in space tracked? HowStuffWorks checks out the science of mapping in space.

Why Do Black Holes Twinkle?

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Researchers at Australian National University studied 5,000 star-eating behemoths to find out.

What if a black hole formed near our solar system?

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Black holes have serious pull, and they're not afraid to use it. Could one of these skulking bad boys ever arise in our home, sweet (solar system) home?

How the Big Bang Theory Works

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The big bang theory is well-known, but there are many misconceptions about it. Like what? Let's start with this one: There was no bang.

How are astronomers able to measure how far away a star is?

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It turns out that measuring the distance to a star is an interesting problem! Astronomers have come up with two different techniques to estimate how far away any given star is.

Does the rotation of the Earth affect toilets and baseball games?

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The world's intelligentsia has managed to convince us that the Earth is round and makes a full rotation once every 24 hours. Why can't they agree on the effects of that rotation on toilets and ball games?

Radio Telescope Image Gallery

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The radio telescope pictures in this gallery feature observatories around the world. See radio telescope pictures and the astronomers who use them.

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