Astronomers discover celestial object unlike anything seen before – The Independent

Astronomers discover celestial object unlike anything seen before  The IndependentPlanetary-mass exosatellite detected around the substellar companion of a star  NatureAstronomers Discover the First Known Moon Outside our Solar System—and What a Moon it Is  Time MagazineExoplanet or Exomoon? New Contender Elicits Skepticism  Sky & TelescopeNewly discovered object is so strange that we don’t know what to call it, astronomers say  The Independent