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.