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Space's Deepest Secrets

Cassini's Grand Finale

Season 3 Episode 5
Go inside the final moments of NASA's Cassini mission, a 20-year project to explore Saturn and its moons. Cassini revealed the secrets of strange new worlds that could harbor alien life, changing everything we know about our Solar System.
  • 43 min
  • TV-PG
  • Premiered 09/19/2017