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Helium Detection at HAT-P-11b

6 Dec 2018, 20:03 UTC
Helium Detection at HAT-P-11b Denis Bajram

You would think that helium, being the second most common element in the universe, would have been detected in exoplanet atmospheres long ago. A major constituent of the atmosphere at both Jupiter and Saturn, helium seems a natural because planets form from dust and gas from previous stellar generations, but it turns out that the first helium detection on an exoplanet occurred only this year, in a study led by Jessica Spake (University of Exeter).

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