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Why a Geomagnetic Storm Makes for Pretty Skies and Tech Scares
science.howstuffworks.com/geomagnetic-storm.htm
When the Sun gets rowdy, Earth feels it. A geomagnetic storm happens when solar activity stirs up Earth’s magnetic field, producing large magnetic disturbances that can mess with everything from navigation systems to power grids.
Why is water vital to life?
science.howstuffworks.com/environmental/earth/geophysics/water-vital-to-life.htm
We know water is vital to life on Earth, but have you ever wondered why? Find out why water is vital to life on Earth in this article.
Will we soon be extinct?
science.howstuffworks.com/life/evolution/mass-extinction.htm
A mass extinction on Earth is long overdue, according to population ecologists. Find out what Earth's fossil record may be telling us about our future.
P.T. Barnum Begins Career as Showman
history.howstuffworks.com/american-civil-war/pt-barnum.htm
Most of us know P.T. Barnum because of the circus, but he was actually an important figure in American history. Learn how P.T. Barnum went from small-time entrepreneur to master showman and founder of the "Greatest Show on Earth."
Space Lettuce Is Out of This World Good
science.howstuffworks.com/space-lettuce.htm
Lettuce has key nutrients that give both astronauts and Earth-dwellers alike a physical and psychological boost. And the lettuce grown in space is no less nutritious than the Earth-bound variety.
White Dwarfs Can Shred Planets to Pieces
science.howstuffworks.com/white-dwarfs-shred-planets.htm
So what does that mean for good ol' Earth someday?
Tropical Rainforest Guide: How Rainforests Work
science.howstuffworks.com/environmental/conservation/issues/rainforest.htm
Tropical rainforests are the most diverse ecosystems on Earth, and also the oldest. Today, tropical rainforests cover only 6 percent of the Earth's ground surface, but they are home to over half of the planet's plant and animal species.
Chloroplasts Are the Plant Cells That Manufacture Energy
science.howstuffworks.com/life/cellular-microscopic/chloroplasts.htm
Chloroplasts are where some of the most miraculous chemistry on Earth goes down.
7 Types of Eclipses: Lunar, Solar and ... Hybrid?
science.howstuffworks.com/types-of-eclipses.htm
When the moon, Earth and sun align just right, the result is one of nature's most dramatic celestial events. The different types of eclipses each reveal something unique about our solar system and the motion of the moon and Earth.
A Kid-friendly Introduction to Magnets and Magnetism
science.howstuffworks.com/magnets-and-magnetism-kids.htm
Magnetism is at work all around you. Even our Earth is a giant magnet!