But they undoubtedly had more important things to worry about, like building bigger and better spaceships.

Now suppose some people are on a big spaceship and they want to make a very accurate clock.

"It must be the biggest spaceship in the galaxy."

They had no chance to escape and hide somewhere in the big cylindrical spaceship.

Ours are really baby spaceships, just big enough to hold one man.

"It is like going from an anonymous space to being on a big spaceship."

There are big new spaceships building all over the world.

The day finally came when the big spaceship slid into an orbit about the ruddy planet.

"I don't know for sure but presumably the big spaceship'll come back."