For the first time, astronomers have discovered what could be an exomoon, a moon outside our solar system. The exomoon was found around the gas giant exoplanet Kepler-1625b, which orbits a star 8,000 light-years from Earth.
원문출처 : https://www.cnn.com/2018/10/03/world/exomoon-discovery/index.html
원문출처 : https://www.cnn.com/2018/10/03/world/exomoon-discovery/index.html