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Space conspiracy theories feature hoaxes, government cover-ups and intelligent aliens. Check out our list of the top 10 space conspiracy theories.

The Gemini spacecraft took 20 astronauts to space and back. Find out how the Gemini spacecraft took NASA one step closer to landing on the moon.

Narwhals, the unicorns of the sea, are unusual tusked whales who like icy ocean waters. See what else makes narwhals interesting whales indeed.

Our home remedies for knee pain will help you protect some of the most complex joints in your body.

Moore's Law says computer processors double in complexity every two years. What does that mean? Learn more about Gordon Moore and Moore's Law.

The internet has made it possible to have a side job - or a full-time one - within your four walls, or just beyond them. We look at 10 great gigs.

Artificial geothermal energy is made by adding water to naturally hot rocks. Learn about artificial geothermal energy.

When sound waves strike the ear, these waves produce the sensation of sound. Let's take a look at how sound waves work.

Soccer, or football, is the most popular sport in the world. Learn about soccer, soccer leagues, soccer rules and great soccer players.

Decorating your teen's room is a great opportunity for collaboration. Learn funky, youthful decorating ideas that remain practical.

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