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Strange Signals from Outer Space

   2017    Science
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. Horizon obtained exclusive access to film researchers at the Green Bank Telescope searching for radio signals from Tabby's Star, a star so mysterious that some scientists believe it might be surrounded by a Dyson Sphere, a vast energy collector built by advanced aliens.
Oceans
Oceans

   2009    Nature
The Secrets of Quantum Physics
The Secrets of Quantum Physics

   2014    Science
Bronze Age
Bronze Age

   2016    History
Kingdom of Plants
Kingdom of Plants

   2012    Nature
Monster we met
Monster we met

   2006    Science
The Art of Germany
The Art of Germany

   2010    Art