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How Photosynthesis Captures Light and Powers Life on Earth
science.howstuffworks.com/life/cellular-microscopic/photosynthesis.htm
No life, except possibly very small bacteria, would exist on Earth without photosynthesis.
What Is the Strongest Metal on Earth?
science.howstuffworks.com/environmental/earth/geology/titanium.htm
Let's take a look at some of the strongest metals on Earth and their surprising uses.
The Stratosphere Is Home to Earth's Ozone Layer
science.howstuffworks.com/environmental/earth/geophysics/stratosphere.htm
The stratosphere is one of Earth's five atmospheric layers that also includes the troposphere, mesosphere, thermosphere and exosphere.
What's the Earth's biggest threat to biodiversity?
science.howstuffworks.com/environmental/conservation/issues/biggest-threat-to-biodiversity.htm
The biggest threat to biodiversity on Earth is explained in this article from HowStuffWorks. Learn about the biggest threat to biodiversity.
Solar Storm + Earth's Magnetic Field = Auroras Galore
science.howstuffworks.com/solar-storm.htm
In 1859, the Carrington Event was the most intense global solar storm ever recorded. The effects were felt all over the Earth.
Could we stop an asteroid on a collision course toward Earth?
science.howstuffworks.com/stop-an-asteroid.htm
To stop an asteroid that is on a collision path with the Earth would be a monumental task. Find out how scientists are researching ways to stop an asteroid.
Gliese 581c: The First 'Earth-like' Planet Found
science.howstuffworks.com/gliese-581c.htm
Gliese 581c was one of the first "Earth-like" planets found, back in 2007. It generated a lot of excitement then but what about now?
12 Extinct Animals That Once Roamed the Earth
animals.howstuffworks.com/extinct-animals/extinct.htm
Learn more about the top 10 most mysterious creatures to disappear from the earth.
Venus: Earth's Blazing-hot and Bizarre Twin
science.howstuffworks.com/46009-venus-explained.htm
The atmosphere is crushing on Venus, and it's so hot lead would melt. But the planet still has a lot in common with Earth. We'll explain.
What is the most isolated culture on Earth -- and what can we learn from it?
people.howstuffworks.com/most-isolated-culture.htm
The most isolated culture on Earth has managed to avoid the rapid evolution of society and technology. Learn about the most isolated culture.