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‘A molten, mushy state’: scientists may have found a new type of liquid planet

Latest observations of L98-59d, about 35 light years from Earth, suggest it could be different to anything seen before

‘A molten, mushy state’: scientists may have found a new type of liquid planet

TL;DR

  • A planet named L98-59d, approximately 1.6 times Earth's size, has been identified as being composed of molten lava.
  • The planet orbits a red star 35 light years away, with surface temperatures reaching 1,900C (3,500F).
  • Advanced computer simulations suggest L98-59d has a global magma ocean, which helps retain its sulphur-rich atmosphere.
  • This discovery implies molten planets might be common and prompts caution in designating exoplanets as potentially habitable.
  • The findings, published in Nature Astronomy, suggest a new category of liquid planet may exist.