L 98-59 d: Exoplanet with Magma Ocean and Toxic Atmosphere

The exoplanet L 98-59 d, located 34 light-years away, exhibits unique characteristics that place it in a new category. It is covered by a magma ocean and has a toxic atmosphere rich in sulfur, with a rotten egg smell.

The planet orbits a red dwarf and has a diameter approximately 60% larger than Earth's. The surface temperature reaches 1,500 degrees Celsius due to an uncontrolled greenhouse effect.

According to Harrison Nichols of the University of Cambridge, the magma ocean is a single, deep layer without a distinct structure. The atmosphere contains about 10% hydrogen sulfide, which gives it the characteristic unpleasant odor.

L 98-59 d was discovered in 2019 and observed by the James Webb Space Telescope in 2024. Researchers emphasize that it is unlike any other of the 6,100 exoplanets discovered to date.