that silent letters exist in English. and the spelling system just hasn't kept up with it. like through and thought and night ...

Follow me please class. We’re here at the optician’s to get a good look at a human eye and find out how it works. Human eyes are actually spheres. The part that we can see is only just the front. That ...

At 18, Katie Stubblefield lost her face. At 21, she became the youngest person in the U.S. to undergo the still experimental surgery. Follow her incredible story. Sixteen hours into a transplant ...

On July 30, 2003, a team of Spanish and French scientists reversed time. They brought an animal back from extinction, if only to watch it become extinct again. The animal they revived was a kind of ...

We get it, you're busy. Here are 10 things that came up this week that you should be aware of. View Gallery ...