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Planet 9 From Outer Space
On January 20 2016, two American astronomers made an extraordinary claim - they had found evidence for a ninth planet in our solar system, a planet 20 times further out than Neptune which would take up to 20,000 years to orbit the sun. It is a discovery that could completely rewrite our understanding of our solar system and how it formed. As the world's biggest telescopes start scanning the skies searching for Planet 9, the Sky at Night team investigates. If Planet 9 exists, where is it and where did it come from? In California, Chris Lintott meets the astronomers whose study of the distant Kuiper Belt led them to predict the existence of the planet. And while some scientists are still sceptical, Maggie Aderin-Pocock discovers how our models of the formation of the solar system and the discovery of similar exoplanets around other stars all support the existence of Planet 9.
Aired: Feb 14, 2016 Genre: Documentary NewsDuration: 30m Rating: 0 Country: United Kingdom Production:
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Episodes
01: Planet 9 From Outer Space02: Five Greatest Images of the Solar System03: Stephen Hawking on Black Holes04: Mercury: The Problem Child of the Solar System05: Secrets of the Whirlpool Galaxy06: Juno: Mission to Jupiter07: Interstellar: The Journey to Proxima Centauri08: Goodbye Rosetta: A Sky At Night Special09: Life on Mars10: Review of the Year