Just like the first time, this one has traits suggesting that such moons may differ greatly from those populating our solar system.
Data obtained by NASA's Kepler space telescope before it was retired in 2018 indicated the presence of a moon 2.6 times the diameter of Earth orbiting a Jupiter-sized gas giant about 5,700 light-years away from our solar system in the direction of the Cygnus and Lyra constellations, scientists said on Thursday.
A light-year is the distance light travels in a year, 5.9 trillion miles (9.5 trillion km).
