How far back does the fossil record really go anyway? It might not be as far as you think.
Are rocks magically appearing in your garden? Find out where they're coming from on this Moment of Science.
Death Valley has many mysteries, including one of nature's strangest phenomena: rocks that move on their own.
Find out why the search for alternative energy is heating up with geothermal technology!
When it comes to the mating patterns of side-blotched lizards, size is everything, the size of the home that is. Learn more on this Moment of Science.