Fact Check: Did Scientists Really Detect Evidence of Life on Exoplanet K2-18b?
Astronomer Royal, astronomers, atmosphere, BBC News, Big Think, biosignature, Catherine Heymans, CBC, Christopher Glein, CNN, dimethyl disulfide, dimethyl sulfide, earth, exoplanet, Hyacean ocean planet, Intelligent Design, K2-18b, magma, Massachusetts Institute of Technology, molten rock, Neptune, New York Times, Nora Hänni, Oliver Shorttle, phytoplankton algae, Planetology, rocky planet, Sara Seager, Science (journal), Science Reporting, Sky at Night Magazine, solar system, Southwest Research Institute, University of Bern
The molecule is dimethyl sulfide (DMS) or dimethyl disulfide (DMDS), and on Earth its sole known source is life (specifically, marine phytoplankton algae). Source