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Top Science Stories of 2017

   2017    Science
Take a look back at many of the most fascinating science stories of 2017, a year full of stunning advancements in individual fields of study, from astronomy to biology, geology to history – when we piece these discoveries together we see the year in a new light.

Building the Sun The 250 Million Degree Problem

   2017    Technology
Scientists investigate the way the Sun builds its power -- through fusion -- hoping to find a way to use fusion as a less dangerous and less radioactive waste-producing path to energy than fission. But there are some major difficulties along the way. Fusion really is the perfect way to make energy. We have millions of years worth of fuel. It produces no long-lived radioactive waste. If we can solve the engineering challenges, energy will become cheaper, more available for everybody.
Series: Catalyst

Dynamic Salt

   2016    Technology
Could we get all our energy needs from sea water and the salt it contains? Are we to witness a time when salt will power our engines and factories, and light up our cities? Could this be the final curtain not only for shale gas and oil, but also the burning of fossil fuels and the beginning of a gentler form of energy that is definitely renewable? This documentary explores the latest research on sea water and the way scientists all over the world are working on 'Blue Energy'. This research could bring about a major change in our time.

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.

Can We Hack the Planet

   2017    Technology
Humanity is under threat - from storms that seem to get ever fiercer, earthquakes that seem ever more deadly, and killer viruses that are engulfing the globe. Some scientists think it's time for us to fight back. Can we - should we -hack the planet?
Series: Through the Wormhole Season 8
The Men Who Built America
The Men Who Built America

   2012    History
Through the Wormhole Season 7
Through the Wormhole Season 7

   2016    Culture
Through the Wormhole
Through the Wormhole

   2011    Science
Blue Planet II
Blue Planet II

   2017    Nature
Frozen Planet
Frozen Planet

   2011    Nature
Stephen Hawking's Favorite Places
Stephen Hawking's Favorite Places

   2016    Science
Wonders Of The Universe
Wonders Of The Universe

   2011    Science