But what if these others belong to a different species and inhabit a radically alien universe?

They no longer tried to force their way into the alien universe with large fleets.

The last third of the book ventures into the alien universe.

But here in this alien universe his crime did not exist.

Kirk said, "We've been to two alien universes, but we didn't actually move much in normal terms."

Obviously this was a completely alien universe from Bink's own!

"Then all that talk about your being from an alien universe was just a hoax?"

His satire is something to cling to in this alien universe.

Such misjudgments of taste and style are to be expected when viewing an alien social universe.

Some kind of computer that sends me into alien universes.