OJ287
...that the supermassive black hole at the center of the quasar OJ287 has been measured to be 18 billion times the mass of the Sun, six times heavier than the previous record holder?
...that the <a href="./Supermassive_black_hole" id="mwC4Q" rel="mw:WikiLink" title="Supermassive black hole">supermassive black hole</a> at the center of the <a href="./Quasar" id="mwC4U" rel="mw:WikiLink" title="Quasar">quasar</a> <b id="mwC4Y"><a class="mw-redirect" href="./OJ287" id="mwC4c" rel="mw:WikiLink" title="OJ287">OJ287</a></b> has been measured to be 18 billion times the mass of the <a href="./Sun" id="mwC4g" rel="mw:WikiLink" title="Sun">Sun</a>, six times heavier than the previous record holder?