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

The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

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

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

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

LOUISVILLE, Ky. (WAVE) - A mix of sun and clouds is in today’s forecast as temperatures climb into the 40s for afternoon highs. Clouds increase this evening before rain, snow, and a wintry mix move ...

Goodbye are the days of upper 70s and low 80s, at least for now; clouds will play a major role ... Is it a major drop? No: but compared to near 80° temperatures at our warmest point, it is ...

Today will see patchy cloud with the odd bright spell throughout much of the day, but thicker cloud will move in from the west towards the evening. A chilly day. Tonight Tonight will be cloudy and ...

The European Southern Observatory (ESO) has released a stunning 80 million-pixel image of the star cluster RCW 38, as captured by ESO's Visible and Infrared Survey Telescope for Astronomy (VISTA), ...

Expect a cold day with a mix of sun and clouds. This morning ... The UV index is low, so no need for sunscreen today. Air quality remains low risk, making it safe for outdoor activities, but ...

Space can be a wondrous place, and we've got the pictures to prove it ... The evening launch provided ideal conditions for the setting sun to light up the rocket's expanding engine plume against ...