The Earth is really, really old. Over 4 1/2 billion years old, in fact. How do we begin to comprehend a number that large? It helps to put it on a more fathomable scale. Watch to see where Earth's ...

Science has been through a lot since the long history of the planet Earth. And people have philosophized and thought about it for a long time. I ...

Earth Day is the perfect opportunity to get your kids involved in some fun and unique crafts. There are so many different ...

Researchers have discovered a 3.5-billion-year-old meteorite impact crater in Western Australia, providing new insights into ...