science education resource

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Light Years

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Light moves at 186,000 miles per second (299,000 km per second). This is how fast light travels in a year. It equals 6 trillion miles (10 trillion km). If an object in space is a million light years away, what we are seeing was how it looked a million years ago.

 

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Exploringnature.org has more than 2,000 illustrated animals. Read about them, color them, label them, learn to draw them.