Why are rubies red and emeralds green? Their colors come from the same metal in their atomic structure
The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But ...
See it: Origin of mysterious bright green light streaking across Maryland sky identified
The origin of a mysterious throbbing light racing behind clouds across parts of the northeastern U.S. and Canada over the ...
It Takes The Entire Rainbow Of Colors To Make The Sky Blue. Here's Why.
It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something ...