Here on an airless world that didn't matter, of course, but it remained, to my mind, a significant matter.

If the Earth were an airless world like the Moon, the above calculations would be accurate.

Apparently Corbett was not expected to know how to walk on an airless world.

A sort of unholy calm was settling over the hot, airless, deep blue world.

It was well known, even then, that asteroids were small, dry, airless worlds.

There was no room for shyness in this airless, spinning world.

"It'd be a little tougher being stationed on an airless world, I must agree."

A thin layer of cosmic dust lay over the surface, such as would be found on any airless world.

Spaceports on airless worlds all look pretty much the same.

There it had adapted to a cold, airless world.