It's named Eos, after the Greek goddess of the dawn, and contains approximately 3,400 solar masses worth of gas.

It wasn’t a spaceship descending over Palm Desert; it was a gigantic lenticular cloud that just happened to take perfect form at sunset. According to National Weather Service meteorologist Brian ...

Asperitas clouds are a distinctive, but relatively rare cloud formation that takes the appearance of rippling waves.

A single cloud can be so dense that one large cumulus (the fluffy, cotton-candy-like ones) can weigh 1,000 tonnes. The shapes of these formations — and where in the atmosphere they end up (high ...