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What are Saturn's rings made of. Learn about Saturn's six main rings, what Saturn's rings are made of and how Saturn's rings were named.

Gravity is the force that causes two particles to pull towards each other. Learn about gravity and find out how Newton and Einstein explain gravity.

A child being kidnapped is a parent's worst nightmare. Learn how the AMBER Alert system can help return children safely.

Pityriasis rosea is a rash that occurs at almost any age. Learn about how pityriasis rosea works at HowStuffWorks.

Basics of lung cancer gives an overview of this type of cancer. Learn more about the basics of lung cancer at Discovery Health.

Does love make your pupils dilate? Read about the effect that sexual arousal has on your pupils at HowStuffWorks.

Army reconnaissance jobs are highly sought-after. Visit HowStuffWorks to learn all about Army reconnaissance jobs.

Going overseas for medical school is becoming increasingly popular. Find out why more and more people are going overseas for medical school.

O Canada ... the country where you can order a cocktail with a human toe in it (and other quirky things about those Canucks up North).

There are certain things you should look for when shopping for a new tire. Learn about the 5 things to look for in a new tire at HowStuffWorks.

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