The fluffy ring is made up of cumulus clouds that have been sculpted into a Rayleigh-Benard convection cell — a meteorological phenomenon powered by the rising and falling of air ... where sunlight ...

This is the common and familiar “sea­gull ... dark orbital ring. Juvenile and first-winter: fresh juvenile has neat, scaly upperparts; back usually becomes pale gray by late fall.

China Issues Maritime Warning Due to Falling Rocket Debris in South China Sea BEIJING (Reuters) - China's maritime authority has issued a warning of falling rocket debris in the South China Sea ...