Scientists find entirely new kind of planet
undefined 17, 2026

Scientists have discovered a wholly new type of planet: L 98-59 d. Roughly 1.6 times Earth’s size, it has a permanent magma ocean storing sulphur and a hydrogen-rich atmosphere with hydrogen sulphide. Unlike gas dwarfs or water worlds, L 98-59 d’s molten mantle preserves volatile gases, showing planets can be far more diverse than thought. While unlikely to host life, the find hints at many undiscovered planetary types across the galaxy.
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