Space agency said potential finding of dimethyl sulfide on K2-18 b, produced only by life on Earth, is yet to be confirmedScientists at Nasa have announced the existence of a possible rare water ocean on a giant exoplanet scores of light years away and also a chemical hint of a sign of potential life. “Upcoming Webb observations should be able to confirm if DMS is indeed present in the atmosphere of K2-18 b at significant levels,” said Nikku Madhusudhan, a University of Cambridge astronomer and lead author of the Nasa research. ”Nasa celebrated the first anniversary of operation of the Webb space telescope in July by releasing an “unprecedented” closeup image of the nearest star-forming region to Earth