... Galaxy Cluster A2199 . ... In fact, it's much bigger than all bread boxes put together. ... In fact, it is a close, large cluster of galaxies, containing several thousands of galaxies centered around a central dominant galaxy. ... In Jules Verne's science fiction classic A Journey to the Center of the Earth, Professor Hardwigg and his fellow explorers encounter many strange and exciting wonders. ... Black Hole Signature From Advective Disks . ... Do all galaxies have black holes at their centers? ...