Grumpy Old Geeks Topics Possible exomoon discovery Topic Possible exomoon discovery 2 mentions in 1 episode The hosts discuss researchers' reported evidence for a moon orbiting a planet outside the solar system. Mentions 287: 20 Grand Wang Oct 8, 2018 57:27 apparently we have found our first exo moon 57:44 they got time with the Hubble telescope to look at it