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Season 3, episode 3. This player now records resume state for the active profile so browse, account, and detail pages can bring you back here quickly.
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Light Speed
According to the laws of physics we can never travel faster than the speed of light...or can we? Light speed allows us to see things instantly here on Earth, and shows us the entire history of the universe going back nearly 14 billion years. Learn all about light speed, the ultimate constant in the universe and discover ways scientists envision breaking the "light barrier" which may be the only way the star travel of our imaginations ever comes to reality.
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Episode 10: Strangest Things