خلاصہ: Positive: Physicists detect rare 'second-generation' black holes that prove Einstein right . . . again
Physicists have analyzed two enormous black hole mergers that happened one month apart and have come up with tantalizing evidence that rare ‘second-generation’ black holes were involved. Scientists have found two pairs of merging black holes, and they think the larger one in each merger is a rare ‘second-generation’ veteran of a previous collision.