ON THE MENU Dem voters want more moderation Senate GOP’s big map, big money Trump hedges on Vance Transgender readers respond ...

"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

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

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the ...

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars.

Red-and-green-tinted clouds drift through the Martian sky in a new set of images captured by NASA's Curiosity rover using its ...

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

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

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

Readers worried after Mr. Musk and his team were given access to federal payment systems. Here’s how to back up all your data ...

Discover the unique process of graupel formation, distinct from sleet, and learn how to differentiate between the two in this informative article.