Still, there are few villains as apolitical as a giant asteroid.

That on other planets giant asteroids kept pressing evolution's reset button?

The giant asteroid narrowed the gap, filling their front viewport and finally engulfing them.

The last impact had sent them careening at a new angle toward the outer edge of the giant asteroid.

In the meantime it was a rock in space, in effect a giant asteroid.

A giant asteroid, mostly iron, therefore with a surface gravity comparable to Luna's.

A group of astronauts set out to stop a giant asteroid on a collision course with the planet Earth.

Some time in the 1400s, a giant asteroid or comet may have slammed into the sea near Stewart Island.

Soon they were hurtling along a dark tunnel into the bowels of the giant asteroid.

The silver ships strafed the giant asteroid's crust, but caused only cosmetic damage.