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What is the origin of life on Earth?

science.howstuffworks.com/life/evolution/origin-of-life-on-earth.htm

What is the origin of life on Earth? Learn about theories of evolution and the origin of life on Earth at HowStuffWorks.

What If We Had Two Suns?

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Double the suns means double the suntan, double the solar energy and double the awesome sunsets, right? Well, not exactly. Having two suns might sound fun, but it would probably make for a pretty different environment here on Earth.

NASA Announces New Solar System Packed With Seven Planets

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NASA announces a discovery of seven nearby Earth-sized planets. Learn more about the TRAPPIST-1 planets in this HowStuffWorks Now article.

What Would Happen if the Earth Stopped Rotating?

science.howstuffworks.com/science-vs-myth/what-if/what-if-earth-stopped-spinning.htm

You can say goodbye to the seven continents and hello to days that seem infernally long. What else awaits you on a spin-free Earth?

10 Earth Day Activities to Celebrate Our Planet

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Earth Day is the ideal time of the year to form new eco-oriented habits. Here are 10 things you can do to celebrate our planet all year long.

Can You Answer These Basic Questions About the Solar System?

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This quiz is out of this world. Are you ready to find out how much you really know about the Solar System? Will you be a shining star or crash down to earth?

Interesting Science Facts Confirmed and Debunked

science.howstuffworks.com/science-vs-myth/everyday-myths/10-false-science-facts.htm

When reeling off dubious facts (like lemmings plunging off cliffs en masse), there's no better retort to a skeptical audience than calmly explaining that it's not just true - it's science...right?

Science vs. '90s Disaster Movies, a Deeply Geeky Pop Culture Quiz

entertainment.howstuffworks.com/disaster-movie-science-quiz.htm

We're still watching '90s campy disaster flicks for the action scenes and nostalgia value. But accuracy was never their forte. This quiz explains why.

What If the Earth Had Two Moons?

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Tons of planets have more than one moon. Heck, Jupiter and Saturn have more than 50 each, and they seem to be doing just fine. So why is it that the idea of a second moon for Earth has scientists throwing up red flags?

What Would Happen if a Solar Storm Hit Earth?

science.howstuffworks.com/science-vs-myth/what-if/what-if-solar-flare-hit-earth.htm

Solar flares disrupt Earth's magnetic field when they hit the planet, causing issues with power and GPS. But if a major solar storm hit Earth, the consequences could be catastrophic.

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