Earth & Weather

At least 15 cm (6 inches). A 38 cm (15 inch) one was reported in Montana.

Yes, in the Cappadocia region of Turkey there are houses, hotel rooms and even churches carved out of them.

In Vostock, Antarctica it reached -89.2 degrees C (128.6 F) on July 21, 1983.

Less than 3 percent is freshwater.

The Mauna Loa volcano on the Big Island of Hawaii in the Pacific Ocean is the largest volcano on the planet.

Over 100 lightning bolts strike the earth each second.