The Real Reality Show: Black Hole Facts

Five interesting facts about astronomy's most popular yet mysterious objects: black holes.
By | Published: September 16, 2014 | Last updated on May 18, 2023

1) Black holes are the most luminous objects in the universe but produce no light.

2) Time does exist inside a black hole.

3) A stellar-mass black hole is about the size of a city.

4) Every normal galaxy has a supermassive black hole at its center.

5) Time slows down to a near standstill at a black hole’s event horizon.