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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Why Are There No Purple or Green Stars?

March 29, 2013 | Article

Red, blue, yellow and white stars twinkle overhead. So why no green or purple stars?
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Who Invented the Mirror?

March 28, 2013 | Reference

Vanity, thy name is thousands of years old.
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What Is the Stroke Belt?

March 27, 2013 | Article

Living in the Stroke Belt has real health risks.
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What Makes Water Hard?

March 25, 2013 | Article

Water hardness varies from region to region.
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What Causes a Red Tide?

March 11, 2013 | Article

The toxic algal blooms can kill marine animals - and humans.
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What's the World's Longest Bridge?

February 28, 2013 | Article

Hint: The two longest bridges are on the same rail line.
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Mammoth or Mastodon: What's the Difference?

February 27, 2013 | Article

Though similar in appearance, they're not closely related.
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Would I Weigh Less at the Equator?

February 27, 2013 | Article

Amazingly, you would experience less gravity at Earth's equator. An object's gravitational pull on another object depends upon both objects' masses and their mutual distance.
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Will Pluto Ever Hit Neptune?

February 27, 2013 | Article

Since Pluto's orbit intersects Neptune's orbit, will Pluto ever crash into Neptune or become one of Neptune's moons?
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Will Eating Pet Food Kill Me?

February 26, 2013 | Article

Chowing down pet food may not be as safe as it used to be.
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