Mapping and exploring uncharted territories may seem practically impossible on our planet, but Eddy Cartaya has found some cool places to boldly go where no one else has gone: glacial caves. He shares his experiences and excitement about...

During World War I, women served in the factories and on the home front to keep nations churning. The ninth lesson of a 32-part WWI series examines the role women played in the Great War and provides topics for discussion on women's...

The world's population of cats would wrap around the earth six times! Follow the evolution of the cat that began 11 million years ago and discover how their dominance came to be through a quick video lesson. 

Einstein didn't just discover relativity, he proved the existence of atoms in 1905 — more than 110 years ago. Discover how he did it and begin learning about basic chemistry: parts of an atom, atomic mass, atomic number, and how to read...

Ten seconds doesn't seem like much time, but if people had that much of a warning before a big earthquake hit, it could save countless lives and prevent serious injury. The video points out that, by measuring the quick-moving P-waves and...

In a discovery that would make Betty Rubble squeal with joy, scientists discovered fibers in a cave from 34,000 years ago that were dyed in pinks and blues. The video details the findings, which were not only unique because of the...