A rover got a new view of some peculiar extraterrestrial clouds, flecked in rainbow colors and moving ... re too faint to see in daylight, appear iridescent by scattering light from the setting ...

They also have a similar appearance to the rainbow observed on a mother-of-pearl gemstone. Sign up for our Newsletters This phenomenon among clouds is known as cloud iridescence. It occurs when ...

Rainbows are a common sight to see across the globe and are formed when the suns rays come in contact with water droplets.

The photo published on the website of the US space agency shows an iridescent cloud, whose shape is strikingly reminiscent of a feather, shortly after sunset.