Earth slept, a dark disk edged in light.

Almost at once, the stars slipped up the viewscreen as the dark disk of Chal rushed toward them.

The leaves were dark green disks covered with pale red Designs.

I looked, saw a disk-a dull dark disk about as large as a full moon.

Above, the sun's flaming corona peeped past the dark disk of the moon.

Here and there, small settlements glimmered against its huge, dark disk.

It has yellow eyes, a black beak, a dark blackish facial disk, and white eyebrows.

The Earth hung there, a dark swollen disk filling the sky.

I watched as she reached into her coat and brought out a dark blue floppy disk in a clear plastic case.