They can look similar to bubbles in soap or oil over water that give a rainbow appearance. They also have a similar appearance to the rainbow observed on a mother-of-pearl gemstone. Sign up for our ...

It’s not the aliens, it isn’t the end of days, what you’re looking at is an ice pillar, also known as a light pillar.

Mars is often seen as a barren, rust-colored wasteland, but NASA’s Curiosity rover has just revealed a surprising burst of color in the planet’s skies. New images taken by the rover showcase rare ...

Photos of colorless, phantom-like rainbows mysteriously shining over the Texas Gulf Coast have been recently circulating on ...

Martian clouds are almost always made of dry ice, or frozen carbon dioxide. 95% of the planet's atmosphere is CO2.

The clouds, composed of carbon dioxide ice crystals, glow in shades of red, green, and pearlescent hues in the martian ...

Twilight clouds were first observed on Mars by NASA's Pathfinder mission in 1997. This rare atmospheric phenomenon has not ...

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

NASA’s Curiosity rover has captured breathtaking images of red and green-tinted clouds drifting across the Martian sky. These ...

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...

American space agency NASA publishes a short video showing iridescent clouds moving in the thin Martian atmosphere, as seen ...