Astronomers have spotted a distant world "shedding" its atmosphere into space in real time, creating a giant cloud of helium gas that sweeps across its parent star well before the planet itself.
A 'super-puff' exoplanet is losing its atmosphere, and the James Webb Space Telescope had a look
Source: space
Source Link: https://www.space.com/astronomy/james-webb-space-telescope/giant-helium-cloud-caught-escaping-from-puffy-exoplanet-by-jwst