But here, giant dark clouds come rolling in from out of nowhere, and then there's a storm.
It is likely that all of these stars formed in the same giant molecular cloud.
The giant white cloud of stars was swiftly shrinking in size.
It forms a giant cloud of gas called a planetary nebulae.
Stars are created within galaxies from a reserve of cold gas that forms into giant molecular clouds.
In addition, there's the giant cloud of gas that emerges after the first canister goes off.
It formed 4.6 billion years ago from the gravitational collapse of a giant molecular cloud.
It creates giant clouds and an eerie brown darkness in the middle of the day.
Association members are believed to form within the same small volume inside a giant molecular cloud.
A giant cloud of black smoke filled the sky.
