Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 54 · Episode 5 ·
Strange Signals from Outer Space!
For decades some have suspected that there might be others out there, intelligent beings capable of communicating with us, even visiting our world. It might sound like science fiction, but today scientists from across the globe are scouring the universe for signals from extraterrestrials.
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Episode 5 of season 54 of Horizon: “Strange Signals from Outer Space!”. Aired 2017-05-16. Watch it online free on ZapFlix.