James Webb Space Telescope detects water vapor around alien planet. But where did it come from?

Credits; This artist concept represents the rocky exoplanet GJ 486 b, which orbits a red dwarf star that is only 26 light-years away in the constellation Virgo. (Image credit: NASA, ESA, CSA, Joseph Olmsted (STScI), Leah Hustak (STScI)) We could be on the verge of a major breakthrough in the search for other worlds that might support life. Astronomers used the James Webb Space Telescope (JWST) to observe water vapor around a distant rocky planet. The water vapor could indicate the presence of an atmosphere around the extrasolar planet, or exoplanet, a discovery that could be important for our search for habitable worlds outside the solar system. However, the scientists behind the discovery caution that this water vapor could be coming from the world's host star rather than the planet itself.