Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more common.

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 ...

Maine's Total Weather explains the science behind the rare phenomenon known as cloud iridescence. Conservation biologist ...

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

The "Curiosity" rover has taken a highly fascinating photo on Mars. The photo published on the website of the US space agency ...

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

Stargazers are preparing for the arrival of the first blood moon lunar eclipse of the year, with people having the chance to ...

There's a place on Earth where lightning flashes almost every night—until, one day, it stopped. What causes the Catatumbo ...

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

A fogbow forms the same way a rainbow does, light bends, reflects, and scatters through water droplets, but there is a key ...

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