Oct. 4, 2018, 1:11 a.m.
First exomoon discovered
NASA's Kepler and Hubble space telescopes have spotted evidence of a Neptune-size satellite orbiting the Jupiter-like planet Kepler-1625b, which lies about 8,000 light-years from Earth,
First Exomoon Found? Neptune-Sized World Possibly Spotted Orbiting Alien Planet
