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Through the Wormhole with Morgan Freeman

Is There a Shadow Universe?

Season 5 Episode 9
It appears we live in a universe filled with light. But scientists are certain there is far more matter in the dark portions of our universe. Dark matter has helped shape our Universe, but now we need to figure out exaclty what dark matter is.
  • 44 min
  • TV-PG
  • Premiered 07/16/2014