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Since the 1960s, we've been captivated by the planet Mars. How different is our neighbor, and what have we learned about the most explored planet?

A hydrogen fuel cell is an electrochemical energy conversion device. Learn why governments are pouring money into fuel cell research.

Exercise creates a set of responses in your body, whether you work out regularly or not. Find out how these responses can be enhanced by training.

From Beijing to Boston, chicken pox has plagued millions of children and adults. See how chicken pox works.

Police academies turn average people into crime fighters. Want to become an officer? Learn what training police academies require.

Art heists are dangerous but can earn thieves some serious cash -- if they find the right buyer. Learn about the top five most impressive art heists.

Competitive figure skating is a sport that requires grace, strength and flexibility. Learn about competitive figure skating from HowStuffWorks.

Dogs are actually all one species despite the wide variety of shapes and sizes that make up the family canidae. Learn how dogs evolved from wolves.

Child safety requires a delicate balance of healthy fear without making your undermining your child's sense of security. Learn about child safety.

Selling a house can be frustrating if you don't have the right information. Learn how to find an agent, get the best price, and walk away happy.

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