Directly ahead of him, only twenty miles away, a vast cloud of dust was expanding toward the stars.

The skies overhead were black, a vast turbulent cloud hanging low over the city.

Unable at last to rise, they lay and saw a vast cloud of smoke towering into the sky.

Swirling, sweeping, a vast cloud of deadly gas spread through the room!

He would know one tiny enclave within that vast cloud.

Are all solar systems embedded in a vast spherical cloud of comets?

There was a vast cloud of them, black against the blue of the sky.

The forest and vast clouds of smoke hid from his view the battle, save in his front.

It is a storm, and it carries a vast cloud of dust.

He pointed out of the window, and everyone could see a vast yellow cloud rising up into the air above the mountain.