The sun's rays filtered through the early morning dark clouds and pierced through windows and filled the streets of Kampala city on Valentine's Day. Like the golden rays of the sun, many lovers are ...

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

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

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

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." ...