YouTuber Visits Caltech to Explore if Planet 9 Exists

Many scientists believe there is a ninth planet in our solar system. Could they be right?

In the farthest reaches of our solar system, way past Neptune and Pluto, there are rumors that a 9th planet exists. It's predicted to have a mass five times that of Earth and to orbit once every 10 000 years on a highly elliptical inclined orbit.

Some scientists suspect that such an object exists. As such, YouTuber Veritasium went to Caltech to find out exactly why.

He visited Caltech professor of planetary science Konstantin Batygin. Batygin believes this hidden planet 9 exists.

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The theory of this far far far away planet begins with Uranus' tricky orbit. It turns out that previous astronomers believed that to explain Uranus' anomalous orbit would require that another planet existed and that is how they discovered Neptune.

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Batygin believes that something similar is happening with planet 9. However, a lot of today's scientists dismiss the notion. Veritasium interviews those scientists too.

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In the end, the video is a well-rounded analysis that takes into account both sides of the story. The video goes back and forth between believers and non-believers giving all opinions.

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