"They might decide to investigate this whole region of space."

The window opened onto a region of space such as he had never imagined.

We have always felt something in that region of space.

It seems to be scattered throughout this region of space.

"How did they get out into this region of space?"

In each region of space, the Ancient society was represented by its local species.

But you've got to move us to a more stable region of space.

A black hole is a region of space from which nothing, including light, can escape.

"Your people must be unusually interested in that region of space."

There was nothing like that in this region of space.