It might seem surprising, but the average cumulus cloud, those cotton-like clouds you see on fair weather days, can weigh ...

A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...

Bad weather plagued ULA's launch attempt Amazon throughout a two-hour flight window that opened at 7 p.m. EDT (2300 GMT).

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 that's been ...