L98-59d: A Nearby Super-Earth with a Planet-Spanning Magma Ocean and a Hydrogen Sulfide–Rich Atmosphere

To the point

Using the James Webb Space Telescope scientists identify L98-59d as a nearby super‑Earth that may have a planet‑wide magma ocean and a hydrogen sulfide atmosphere with no stable water ocean, challenging simple rocky vs gaseous labels and hinting at a new planet‑formation path driven by internal heat, with Nicholls noting the magma ocean can store and protect gases for billions of years while Jo Barstow warns of intense volcanism, and the result reshapes ideas about habitability since surface temperatures near 1900°C change how we search for life and call for better modeling and simulations.