Here is something that you might remember from your high school earth science class: As sunlight — which appears to be pure white — passes through a glass prism, it refracts or bends. Different ...

The green flash is a rare, brief optical event of green, yellow, and sometimes blue that colors the horizon, occurring at sunrise or sunset most often in the western U.S. Refraction and dispersion ...

Add Yahoo as a preferred source to see more of our stories on Google. Ever seen a rare green streak of light near the horizon right around sunrise or sunset? These "green flashes" are beautiful indeed ...

Breaking space news, the latest updates on rocket launches, skywatching events and more! You are now subscribed Your newsletter sign-up was successful Want to add more newsletters? Delivered daily ...

Charlie has an undergraduate degree in Forensic Psychology and writes on topics from zoology and psychology to herpetology.View full profile Charlie has an undergraduate degree in Forensic Psychology ...

Ever seen a rare green streak of light near the horizon right around sunrise or sunset? These "green flashes" are beautiful indeed, and the reason they sometimes form is very interesting. To ...