Scientists say they heard the faint chirp of two black holes colliding a billion light-years away, fulfilling Einstein’s general theory of relativity.
Le lien donne vers la source de l'imagep oru la visibilité réelle, ici la visibilité "enhanced" :
https://scontent-a.xx.fbcdn.net/hphotos-frc1/t1/1623206_759824800705200_1272962792_n.jpg