Some clouds appear light and fluffy. Others dark and menacing. But are all clouds made of bacteria?
Could jet streams be a new energy source to power the world's electricity? Find out on this Moment of Science.
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.