<p>➀ With the aid of NASA's James Webb Space Telescope, scientists have found compelling evidence of biological life on a planet called K2-18b, located 124 light years from Earth.</p><p>➁ The team detected gases normally produced by biological activity on Earth, dimethyl sulfide and dimethyl disulfide, in the exoplanet's atmosphere.</p><p>➂ The concentration of sulfur gas levels on K2-18b is thousands of times higher than on Earth, suggesting a potentially habitable environment.</p>