This is the strongest evidence yet of biological activity on a planet outside our solar system…
Astronomers using the James Webb Space Telescope have identified traces of dimethyl sulfide (DMS) in the atmosphere of K2-18b, an exoplanet located 124 light-years from Earth. On our own planet, this specific gas is exclusively produced by life, primarily microscopic marine organisms like phytoplankton. This Hycean world, which features a hydrogen-rich atmosphere and potentially vast surface oceans, sits within the habitable zone of its star, making it a prime candidate for hosting alien biology.
While the findings carry a high level of statistical significance, researchers remain cautious, noting that unknown chemical processes could still explain the presence of these gases. However, the detection of DMS alongside previously discovered methane and carbon dioxide strengthens the hypothesis that K2-18b could support life. Future observations are already planned to confirm these results, potentially moving the discovery from a strong hint to a confirmed scientific breakthrough in the search for our place in the universe.
source: University of Cambridge. Strongest hints of biological activity outside the solar system. University of Cambridge Research News.
ALT This is the strongest evidence yet of biological activity on a planet outside our solar system…
Astronomers using the James Webb Space Telescope have identified traces of dimethyl sulfide (DMS) in the atmosphere of K2-18b, an exoplanet located 124 light-years from Earth. On our own planet, this specific gas is exclusively produced by life, primarily microscopic marine organisms like phytoplankton. This Hycean world, which features a hydrogen-rich atmosphere and potentially vast surface oceans, sits within the habitable zone of its star, making it a prime candidate for hosting alien biology.
While the findings carry a high level of statistical significance, researchers remain cautious, noting that unknown chemical processes could still explain the presence of these gases. However, the detection of DMS alongside previously discovered methane and carbon dioxide strengthens the hypothesis that K2-18b could support life.