From LIGO https://twitter.com/LIGO on Twitter: Big finish to Chad's @LIGO @ego_virgo talk at @APSMeetings: introducing #GW190412 - the first BBH detection with definitively unequal masses! Read the paper on this detection at https://dcc.ligo.org/LIGO-P190412/public #GravitationalWaves https://twitter.com/LIGO/status/1251570931555860482/photo/1 https://chirp.cooleysekula.net/attachment/64649