Scientists Detect Sign of Something Impossible Out in Deep Space

The very concept of black holes seems improbable. Albert Einstein infamously refused to believe they could exist, even though his theory of general theory of relativity was instrumental in predicting them. Now, scientists have witnessed something about these baffling cosmic monstrosities that further stretches the boundaries of physics: a titanic collision of two already enormous black holes, which merged to form a singularity so extreme that it has scientists wondering if what they're witnessin