How Unique is the Earth?
March 1, 2016
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3:57Now PlayingHow Unique is the Earth?
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as posted by the channelHow common are planets like the Earth around other stars? This is a question humanity has been asking since the dawn of civilization, ultimately feeding into the question as to whether we are alone in the Universe? Astronomers are on a quest to calculate "eta-Earth", the fraction of stars hosting Earth-like planets. Thanks to NASA's Kepler Mission, we have recently begun to answer this question. Prof Kipping gives a quick run down of the latest estimates.
::More about this Video::
► NASA's Kepler Mission homepage
► ForemanMackey et al. (2014), "Exoplanet population inference and the abundance of Earth analogs from noisy, incomplete catalogs"
► Dressing & Charbonneau (2015), "The Occurrence of Potentially Habitable Planets Orbiting M Dwarfs Estimated from the Full Kepler Dataset and an Empirical Measurement of the Detection Sensitivity"
► Outro music by Taylor Davis
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