There was a time in Earth’s history that was so stable, geologists once called it the Boring Billion. But the fact is, this period was anything but boring. In fact, it set the stage for our modern version of plate tectonics - and...

Have you ever wondered how our earth was created? Here is a brief history about the Earth.

You've heard of Breast Cancer, Skin Cancer, Colon Cancer, and many others. But this specific cancer was something entirely different—it took a research team five months to diagnose this specific cancer case, and that’s due purely to its...

In the past, some experiments were run in scary and unethical ways. From using children to unknowing subjects, these five experiments left people affected for the rest of their lives.

Photographer James Balog shares new image sequences from the Extreme Ice Survey, a network of time-lapse cameras recording glaciers receding at an alarming rate, some of the most vivid evidence yet of climate change.

You vote, but then what? Discover how your individual vote contributes to the popular vote and your state's electoral vote in different ways--and see how votes are counted on both state and national levels.

Howcast -Learn how to play on-ball defense from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to cradle a lacrosse stick from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to fake a shot from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn about the triple threat position from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to pick up a ground ball from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn the top three shooting tips from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to shoot sidearm from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn some cradling exercises from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to understand shooting space from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn catching drills from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to take the draw from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn two defensive drills from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to check from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to catch from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn some attacking drills from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn about Caitlin Jackson, Liz Kittleman Jackson, and Katie Chrest Erbe of Gameday Lacrosse in this Howcast video.

Howcast -Learn the top three catching tips from coaches at Gameday Lacrosse in this Howcast video.

Howcast -Learn how to play off-ball defense from coaches at Gameday Lacrosse in this Howcast video.