The reply came at once, and Johnny somehow could picture the impossibly vast memory vaults beneath his feet shuffling and reshuffling through a maze of indexed information.

It looked like something you might see on the slide of a microscope; and then again it looked like a galaxy, something impossibly vast.

The thing which had tried to kill him, the security system, had broken and fled, and was now hiding in the most shadowy reaches of its impossibly vast matrix.

Stones as big around as his thigh rolled past him as an impossibly vast black shape, like a negative angel, rose into the sky overhead.

The Court seemed impossibly vast as he stumbled on, like those rooms in uneasy dreams where the far wall seems to recede endlessly away.

There were galaxies in the dark pupil now, slowly swirling, impossibly vast, impossibly detailed.

Trapped in a weird, impossibly vast labyrinth inside the ship, knowing their chances for survival are slim, Nikki and Oscar discover the truth about the aliens.

The Internet may seem impossibly vast to users, but in fact it's quite finite.

Jillian quickly concluded that when the McKane had attacked Tuluth years ago, they must have been either thoroughly arrogant or impossibly vast in numbers.

The memory accosted him then; he'd seen what had looked like an impossibly vast wall of fire sweeping over the ship, consuming it utterly.