Did you know that there is something called "cryosphere" on this little blue gem called Earth? I didn't. And I didn't know that seeing it animated from thousands of satellite high definition photographs could look so cool.
The cryosphere are the parts of the Earth's surface which are covered with water in solid form. It could be snow and ice in glaciers, permafrost, ice sheets, icebergs and—I hope—glasses full of bourbon. Apparently, scientists are now discovering that the cryosphere plays a fundamental role in regulating Earth's temperature. But then again, we are still so clueless about how this whole Earth weather business works. [NASA]