There is another living world above our own, a community of microorganisms, including bacteria, fungi, viruses, and other microscopic life form, who live in the clouds above us. Their habitat is ...

Often, these are fair-weather clouds that form when the Sun warms the ground and the warm air rises. You’ll often see them on humid summer days. However, if the air is particularly warm and humid, and ...

These latter clouds are what can take on an iridescent sheen—in the case of last month’s recording, they formed between an altitude of 37-50 miles above the surface, and can be seen at the top of the ...

New images captured by NASA's Curiosity rover show colorful clouds in the sky over Mars. The images were captured by the rover's Mastcam, which NASA's Jet Propulsion Laboratory compared to the rover's ...