PSR J0952-0607, a so-called millisecond pulsar, has shredded and consumed nearly the entire mass of its stellar companion and, in the process, grown into the heaviest neutron star observed to date. This image shows PSR J0952-0607 and its companion. Image credit: W.M. Keck Observatory / Roger W. Romani / Alex Filippenko. PSR J0952-0607 is located between 3,200 and 5,700 light-years away in the constellation of Sextans. First discovered in 2017, it...