english: Two black holes, the densest thing in the Universe, one with a mass of 29 Suns and one with a mass of 36 Suns, whirling around each other 100 times per second before they collide.
non_english: Dve crne rupe, najgušće stvari u univerzumu, jedna mase 29 sunaca, a druga mase 36 sunaca, vrte se jedna oko druge 100 puta u sekundi pre nego što se sudare.