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Helium leak on exoplanet WASP-107b

An international team has observed gigantic clouds of helium escaping from the exoplanet WASP-107b. Obtained with the James Webb Space Telescope, these observations could be modelled thanks to ...
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James Webb Space Telescope discovers a hot Jupiter exoplanet leaking twin gas tails that defy explanation

Astronomers have used the James Webb Space Telescope (JWST) to discover that a distant "hot Jupiter" planet has two staggeringly long tails composed of helium that currently defy explanation. The ...
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James Webb telescope reveals spectacular atmospheric escape

Astronomers from the University of Geneva (UNIGE), the National Centre of Competence in Research PlanetS, and the Trottier Institute for Research on Exoplanets (IREx) at the University of Montreal ...
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Astronomers detect radio waves from a rare helium-rich supernova for the first time

Astronomers using the NSF Very Large Array report the first radio detection of a rare Type Ibn supernova, revealing how a massive star lost helium-rich material in the years before its explosion ...