All through the day the circular mountain across the plain had unrolled its vast arc of cliff.

He walked to the window, naked, and looked east into the vast arc of predawn sky.

Highly sensitive photography has shown the existence of vast luminous arcs encircling at least two distant galaxies.

One of the insects strayed too close to the vast smooth arc.

They are like a jeweled belt across the whole vast arc of the sky.

She turned, unseen by her pursuers, triple drive exhausts scoring vast arcs across the stars.

They could see the vast arc of the onrushing planet.

At her velocity it'll be a vast, lazy arc, and the best evasive maneuver available-especially if she keeps it irregular.

Soon there were brighter discharges of light within the cloud, vast searing arcs that struck the saucers.

That incandescent thing toward which he dared not look was the sun itself, looming in a vast arc above the horizon.