🌍 SULFUR GASES FOUND ON K2-18 b. COULD THIS BE LIFE? Dimethyl sulfide and disulfide have been confirmed in the atmosphere of exoplanet K2-18 b. On Earth, these sulfur-based gases are only produced by living organisms. This planet has no land, no oxygen, and no blue sky. It is covered by a global hydrogen ocean and lit by the red glow of a dwarf star. The gas signatures detected suggest something may be alive in that darkness. This visual sequence shows what life could actually look like there.