Could coal, a carbon-rich fuel, be the key to fixing America's rising gas prices?
Looking for a seaside vacation spot? Consider Saturn's largest moon, Titan. There's no chance of getting sunburned, but you'll want to take a heavy parka...
You may already know that the earth stores lots of carbon in different places, like the in the ocean and plants. But are there any other major carbon stores?
As a meteor passes into Earth's atmosphere it experiences tremendous air resistance on its front end, but very little on its back end.
During a "meteor shower" bits of rocky material that enter our atmosphere from space burn up because of friction.
Why do airplanes sometimes leave long white contrails behind?
People have been predicting weather since long before we had Doppler radar, and many of these prediction strategies have survived as popular folk sayings.
If you ever visit the Arctic, you might see some really cool, luminescent clouds high up in the atmosphere. Scientists call them night shining clouds.
Interested in a stock tip? Invest in companies that make sunscreen. Why? Because atmospheric aerosol levels are decreasing.
How does such a tiny organism do so much to help reduce global warming?