The presence of water, and a chemical only produced on earth by life has been identified by NASA’s James Webb Space Telescope in the exoplanet K2-18 b:
"These initial Webb observations also provided a possible detection of a molecule called dimethyl sulfide (DMS). On Earth, this is only produced by life. The bulk of the DMS in Earth’s atmosphere is emitted from phytoplankton in marine environments".
Access to the article with the link below:
https://www.nasa.gov/goddard/2023/webb-discovers-methane-carbon-dioxide-in-atmosphere-of-k2-18b
The discovery of life in an another planet is not a matter of "if" but "when". It is just a matter of time.
