Astronomers Find Super-Earth to Likely Have Water-Rich Atmosphere Located 40 light years away from Earth in the constellation Ophiuchus lies a super-Earth called GJ 1214 b. A group of japanese astronomers have been studying it to find out what kind of atmospheric properties it has. The research team used Subara Telescope’s two optical cameras with a blue transmission filter to observe the transit of the super-Earth. The observation would help them discern whether the planet had an atmosphere rich in hydrogen or water. Astronomers found that sky of GJ 1214 b did not show a strong Rayleigh scattering feature, which planets with cloudless hydrogen dominated atmospheres would predict. When combined with the other observations in other colors it led the team to believe that this planet had a water-rich atmosphere. Planetary transits help astronomers investigate...