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

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

Readers’ photos celebrate sunrises and sunsets, when the light is the most pleasing. Fifty-one photos were sent in; here are ...

Arizona has some of the prettiest sunsets, but why? There's a science behind it. Here's what to know, including sunset times ...

Few things make us stop to appreciate the natural world as much as a beautiful sunset ... clouds, and you get this strong red light coming down to you, sitting on the ground in the dark.” Red ...

This sunlight reflected from Earth’s clouds and ice ... a couple of hours after sunset, giving astrophotographers plenty of time to capture a bright Venus in a landscape. It's so bright that ...

Having clouds in the sky with your sunset/sunrise can be great asset ... This is great light for just about anything from landscapes, cityscapes and even portraits. 1. Photos have to be taken ...