It would not set for many an hour, the old planet turned so wearily.

A planet with a clear record nearly four billion years old.

I'm going to make very sure they never take me to any really wild places on this complicated old planet.

"There are still some old planets around here that could use mapping."

This was announced as the oldest planet ever discovered, at 12.6 billion years old.

And then we, somehow, learn how to drive this old planet right back to its own solar system.

Then she followed us to your old planet and took the horns I had with me.

I don't think it was native to the old planet.

"Ours is an old planet - but we still have new generations."

They've been on this old planet a lot longer than we have.