Trivia: Einstein’s theory of relativity was used to predict the existence of what?
Black holes
Aliens
Teleportation
The internet
The correct answer is Black holes
So why is this answer correct? : Einstein’s theory of general relativity, which explains the relationship between gravity and the behavior of objects in space and time, laid important groundwork for German physicist Karl Schwarzschild, who used the theory to predict the existence of what we now know as black holes. Interestingly, Einstein himself was skeptical that such a phenomenon could exist in the real world.