Watch Hubble's Universe Season 3 Episode 3 - Hubble Examines an Earth-Sized Planet

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Hubble\'s Universe Season 3 Episode 3
On May 4th, 2016, the Hubble Space Telescope made the first spectroscopic measurements of two of the three known Earth-sized exoplanets in the TRAPPIST-1 system just 40 light-years away. Now the results are in: a thick, puffy, hydrogen-helium atmosphere is likely ruled out from the possible range of atmospheres for these two planets.
First Aired: October 5, 2016
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Hubble's Universe, Season 3 Episode 3, is available to watch and stream on SpaceRip. You can also buy, rent Hubble's Universe on demand at Amazon Prime online.