Have you ever seen a rainbow in the sky? Rainbows happen when sunlight passes ... Place the sheet of paper where you see color. Watch the rainbow appear on the paper. On another sheet of paper ...

A rover got a new view of some peculiar extraterrestrial clouds, flecked in rainbow ... color filter wheel. At least as far back as the 19th century, astronomers have gazed up at Earth's sky ...

Thursday, April 3rd, is National Find a Rainbow Day. Hawai'i, the "Rainbow Capitol of the World," is known for its vibrant Ānuenue (rainbows), but climate change threatens their future. A ...