First he's got to tell them what a black hole is.

At least one office in Washington is not a black hole.

We do not know much about the inside of a black hole.

A black hole could be just what he needed now.

She seemed to come out of a black hole and fall back into one.

Near a black hole they can be large, we think.

There was a black hole in the middle of the film.

In fact, that black hole used to be our sun.

Where the door had been there was now just a black hole.

Right now she didn't have the energy to think about black holes.