Tucked away in Arizona’s northeastern corner is a water playground that most tourists never find. Lyman Lake gives you 1,500 acres of water fun without the elbow-to-elbow crowds of more famous lakes.

NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

A green sky during a thunderstorm is an unsettling sight, but it doesn’t always signal a tornado. Here's why.