Scientists discover “hell planet” with molten magma oceans and rotten egg atmosphere Astronomers at the University of Oxford have discovered a new class of exoplanet called L 98-59 d, a molten world with surface temperatures of 1,500 C and oceans of magma beneath an atmosphere of hydrogen sulfide, known for its rotten egg smell. The planet orbits a red dwarf star 35 light-years from Earth, with about 1.6 times Earth’s mass but unusually low density, defying classification as a rocky gas-dwarf or water-rich world, instead dominated by a global magma ocean extending thousands of kilometers. The molten silicate mantle acts…

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