What determines the different colors of lightning? I always made the assumption it had something to do with the different elements present in the path of the lightning bolt itself. — William C. Clancy ...

Have you ever wondered why chicken eggs can be different colors? While most eggs are white or brown, they also come in colors like cream, pink, blue and green. In addition — and this is no “yolk” — ...

Hydrogen is a colorless gas. But if you’ve done any reading about the future of energy, you’ve likely seen it identified by a number of different colors—ranging from turquoise and aqua to green, ...

A week or so ago, I got a question on Facebook that was relayed from one of the kids of a college friend, which I'll paraphrase as "What's the physics explanation of what gives objects their color?" ...

TOKYO, Japan — The 2020 Olympics in Japan are coming to a close and thousands of world class athletes are wrapping up after record breaking performances in athletic events, many of which were held at ...

“How can we be sure that people see the same color when they look at something?” – Henrietta, age 12, Market Harborough, UK In fact, we can’t be so sure that we do all see the same colors. What colors ...

Is your green my green? Probably not. What appears as pure green to me will likely look a bit yellowish or blueish to you. This is because visual systems vary from person to person. Moreover, an ...

MOLINE, Ill. — A rare and intense geomagnetic storm in mid-May put on a brilliant display of the Northern Lights across much of the United States. Depending on where you live, you likely saw quite a ...