New mystery object could be lightest black hole ever seen The MeerKat Radio Telescope discovered an unknown object in the Milky Way heavier than the largest neutron star but lighter than the smallest black holes. https://cdn.mos.cms.futurecdn.net/vTP3gJHHgDBFoZ4NTCGzcT.png https://www.space.com/mystery-object-lightest-black-hole-heaviest-neutron-star