Snow is made up of trillions of tiny ice crystals to make snowflakes, with not one alike. Here's how they form.

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

Light pillars have been observed across West Michigan during the night. Cold temperatures and snow flurries help create this ...

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the rover's Mastcam, which NASA's Jet Propulsion Laboratory compared to the rover's ...

Rising temperatures are fueled, in part, by declining cloud cover — which could be a potential climate feedback loop.

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

Gravity wave clouds form in wave-like patterns in sky, oftentimes resembling ripples in a body of water from a rock being thrown. These types of clouds are created from air in the atmosphere coming ...

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings.

Mark Lemmon, an atmospheric scientist with the Space Science Institute in Boulder, Colorado, told NASA that he believes certain regions of the planet are more likely to form the clouds.

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

During the day, folks can call this a 'sun halo', but at night and when associated with the moon, try a 'lunar halo'. These ...

Studying how and where on Mars these clouds form can help scientists better understand their impact on the planet's climate. The images, which were captured on Jan. 17 by one of two cameras ...