With camera gear in hand—a 100-400mm telephoto lens, a telescope, and a set of binoculars—we prepared ourselves for a journey ...

Earth's oceans may have been green for billions of years until the first photosynthetic organisms flooded our atmosphere with ...

Green screens are used to add backgrounds to your favorite movies and TV shows, but why are they green? Here's an explanation ...

Ever noticed how the sky turns a strange greenish hue before a tornado? This eerie phenomenon has baffled people for years, but science finally explains why it happens! The color shift is caused by ...