NASA's James Webb Space Telescope reveals low methane and a super-sized core in gas-giant exoplanet WASP-107b.
NASA's James Webb Space Telescope provides the first direct measurements of an exoplanet's core mass, revealing a surprisingly low amount of methane and a super-sized core within the gas-giant exoplanet WASP-107b. The high temperature of the exoplanet, located 212 light-years away, is thought to be a result of tidal heating caused by its slightly non-circular orbit, providing a solution to the long-standing mystery of why the exoplanet appears puffy.
May 20, 2024
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