There were still several hours before I could open the time capsule.

My second time capsule was waiting for me on the table across the room.

In its way, then, the play is a time capsule, a means to measure how much the system has changed.

I'd known it was coming: the time capsule had said so.

And the time capsule had been easy about that part, anyway.

Before this year, time capsules were opened, in 1974 and 1985.

"It is almost as if she had been in a time capsule," he said.

For their next project, the researchers want to put a time capsule on the moon.

That's the difference between a time capsule and a library.

The five time capsules were sent over, and opened in their presence.