Readers inquire about a Neptune-sized moon, nuclear pasta and more
Your letters and comments on the October 27, 2018 issue of Science News
Exomoonmoon
A sighting by the Hubble Space Telescope provides more evidence that there’s a Neptune-sized moon, dubbed Neptmoon, orbiting the exoplanet Kepler 1625b, Lisa Grossman reported in “Hubble may have spotted the first known exomoon” (SN: 10/27/18, p.