How heavy is the sky?

This week Brains On is giving you an extra helping of Mystery Sounds… with a twist! Listen as our pals at Forever Ago try to stump you with history Mystery Sounds! Joy Dolo and co-host Gabi are having a history sound extravaganza! Join them as they listen to mystery sounds from t ...  Show more

Molly Bloom as a debater? It’s true! This is a sneak peek at a bonus episode we just shared in our Smarty Pass feed. Molly debates Sanden in a Smash Boom Best showdown between Cheetahs and Sloths. To hear the full, ad-free episode, join Smarty Pass. You also get access to all the ...  Show more

The clouds we see in the sky seem rather light, almost like absorbent cotton. However, being filled with water and ice, these gigantic suspended masses weigh - in reality - up to several tons. Don't be fooled by appearances, the clouds that float above your heads are more like an ...  Show more

As far as weight goes, Earth is a pretty hefty celestial body. But exactly how heavy? And how does one measure something so massive? Find out in this podcast from HowStuffWorks.com.

While we all love to do a bit of cloud watching, have you ever thought about the science behind clouds? There is so much more to clouds than just fun animal shapes and rain. Take a listen to the fascinating chat with Jessica Taylor, physical scientist, at NASA's Langley Research ...  Show more