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 ...

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), ...

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings. However, a rover recently captured a splash of color in the sky as rare ...

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

NASA has released stunning images of mysterious colorful clouds drifting in the sky over Mars. Captured by NASA's Curiosity rover on January 17 over the course of 16 minutes, the images show ...

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

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

WNBA free agency is here. Brittney Griner, Jewell Loyd, Kelsey Plum, Satou Sabally and all five Sun starters from last season ...

A new telescope could launch as early as late February. SPHEREx will look into deep space and also search for organic ...