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

You aren't imagining it: The cloud cover isn't what it used to be, and scientists say it is helping fuel Earth's hottest temperatures on record. Global temperatures clocked in at roughly 1.5 ...

More information: Jesse A. Miller et al, Earth's Mesosphere During Possible Encounters With Massive Interstellar Clouds 2 and ...

In this video, delicate red-and-green-tinted clouds are seen drifting through the Martian sky in striking patterns that look similar to the ones Earth clouds make. Studying how and where on Mars ...