The Universe - Season 5 Episode 4
A look at time travel; how it could one day become reality; how Einstein's theory of relativity claims it is possible, and the probable results of traveling to the future and the mind-boggling consequences of traveling to the past.
- genus: Documentary
- Studio: History, H2
- keyword: technology, space travel, galaxy, space, planet, astronaut, universe, cosmology, astronomy, solar system, cosmos, science and technology, science history, science fact, science mystery, science of the stars
- cast: David Ackroyd, Erik Thompson
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