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Cosmic Queries – Discovering Exoplanets with Gáspár Bakos
StarTalk Radio
The Probability of Someone Looking Back at You
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The main thing is now we know that there are I would the estimates vary over time because we're refining it but this basically about 20% of solar type stars have a planet that's rocky so it's not like a helium or hydrogen giant. So if you multiply the 400 billion stars in our galaxy you take there's about 40 billion of them similar to the sun and then you multiply that by 0.2 that's about 8 billion um rocky habitable planets just in our own galaxy. That's a local state.
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