if you go through this tunnel — through this wormhole — you'll go from one moment in time to a different moment in time. Go one way, you'll travel to the past, the other way, travel to the future.

Alana C., age 12, Queens, New York Have you ever dreamed of traveling through time, like characters do in science fiction ...

Wormholes are theoretical tunnels that create shortcuts in space-time If a message entered a wormhole, it could reach the future or the past But wormholes are thought to collapse before a message ...

But using wormholes for time travel won't be straightforward. Artwork: A wormhole can be thought of as a kind of tunnel creating a shortcut between separate points in space-time The nearest ones ...

Carl Sagan, the astronomer, Pulitzer Prize-winning author, and legendary popularizer of science, gave this interview during the making of "Time Travel." True to form, he discusses arcane aspects ...

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Wormholes have been popularized in science fiction, from the film 'Interstellar' to the series 'Stargate' and 'Star Trek'. These mysterious portals could be the key to traveling vast ...