People love the rainbow of ROYGBIV colors: red, orange, yellow, green, blue, indigo and violet. Human eyes perceive visible light as this array of colors. You may notice that some colors you can ...

People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often been called the red planet. Your blood is also red because of a mixture of ...

When it comes to appearances, the universe is a tricky place. Visible light occupies merely a sliver of the electromagnetic (EM) spectrum. To study the cosmos in its entirety, scientists must peer ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com. People from cultures across the world have been ...

People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often been called the red planet.

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The rainbow may be due for an update. A new, high-tech method for ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

Mars isn't a bright, fire-engine red, but the iron oxide in its rocks makes it appear redder than other planets, especially from afar. When you purchase through links on our site, we may earn an ...