But what does it mean when the sky turns purple? While it's not uncommon to spot purple skies during sunsets or sunrises, we can't help but wonder what causes them. Here, we discuss why our eyes ...

Since we really sense just three colors—red, green, and blue, our eyes aren’t as sensitive to the smaller wavelengths of purple as they are to blue. So, if the sky scatters both blue and ...

Photographs and time lapse video footage taken in Jacksonville showed gorgeous (if slightly unsettling) purple ... reach our eyes. This effect also explains why the daytime sky looks blue, since ...

But the sky doesn't appear violet and blue because of our eyes' limitations." Under normal conditions, our eyes can only detect blue, but during a storm, purple can sometimes become visible.

Why did the sky turn purple? Residents took to social media ... from particle to particle until it eventually reaches your eyes. “But the sky doesn't appear violet and blue because of our ...