(IMAGE)

Université de Genève

Caption

Artist's view of WASP-107b. The planet’s low density and the intense irradiation from its star allow helium to escape the planet and form an asymmetric extended and diffuse envelope around it.  Infrared observations with the JWST satellite have enable to observe this phenomenon.

Credit

© University of Geneva/NCCR PlanetS/Thibaut Roger

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