Using data from NASA’s Hubble Space Telescope and retired Spitzer Space Telescope, a group of researchers has discovered two exoplanets that may be largely comprised of water. Located around a red dwarf star 218 light-years away, the two planets are low in density.
Furthermore, the researchers, led by Caroline Piaulet of the Trottier Institute for Research on Exoplanets at the University of Montreal, found evidence of an additional planet that orbits in the red dwarf’s habitable zone — which is the orbital region around a star wherein a planet can possess liquid water and other conditions suitable for life.