Life's Little Mysteries

Life's Little Mysteries answers fascinating questions about the world around you and the stuff in it, from things in the news and on your mind to crazy questions you didn't even know you had.

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Video: How to Make a Solar Eclipse Viewer

July 18, 2017 | Article

The moon will pass directly between the sun and the Earth on Monday, Aug. 21, causing a total solar eclipse. If you want to see it happen, learn how to build a simple eclipse viewer out of a shoe box.
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Why Do We Sleep?

July 18, 2017 | Article

Researchers who study sleep now have a few theories about why we spend one-third of our lives in dreamland.
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How Much Pee Is in Swimming Pools?

July 13, 2017 | Article

Before you take a dip, know this: There is definitely pee in the swimming pool. But, it's probably not that much.
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How Do Fireworks Get Their Glorious Colors?

July 03, 2017 | Article

Each firework is packed with just the right mix of chemicals to create their colorful lights.
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How Do the Chemicals in Sunscreen Protect Your Skin?

July 03, 2017 | Article

Energy from the sun's rays can cause skin damage and cancers. Sunscreens can absorb or reflect the dangerous UV light. Here's everything you need to know to read the labels in the sunscreen aisle.
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Do Smokers' Lungs Heal After They Quit?

June 30, 2017 | Article

After a person quits smoking, the lungs can heal to a certain extent.
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Do Giraffes Get Struck by Lightning More Than Other Animals?

June 25, 2017 | Article

They can reach 19 feet tall, meaning giraffes tower over the savannah they live in. So do they get struck by lightning more than other, shorter animals?
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The Missing Link: Where Are Medium-Size Black Holes?

June 24, 2017 | Article

For decades, while astronomers have detected black holes equal in mass either to a few suns or to millions of suns, the missing-link black holes in between have eluded discovery.
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Why Do Some Animals Eat Their Own Poop?

June 24, 2017 | Article

Why do some animals poop, and then turn around and eat their own droppings?
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Why Do Men Have Nipples?

June 17, 2017 | Article

Men can't nurse babies, so why on Earth do they have nipples?
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