The centre of the NGC 1277 disk galaxy harbours a black hole with 17 billion solar masses.
Media Description:
Invisible gravitational trap: the centre of the NGC 1277 disk galaxy harbours a black hole with 17 billion solar masses - one of the heaviest ever found.
Media use and copyright:
© NASA / ESA / Andrew C. Fabian / Remco C. van den Bosch (MPIA)