https://scitechdaily.com/puzzling-and-counterintuitive-discovery-heaviest-element-ever-found-in-an-exoplanet-atmosphere/
Astronomers have discovered the heaviest element ever found in an exoplanet atmosphere — barium. They were surprised to discover barium at high altitudes in the atmospheres of the ultra-hot gas giants WASP-76 b and WASP-121 b — two exoplanets, which are plane…
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