In a First, Scientists See Light From Behind a Black Hole
Good news! Einstein was right…again. A phenomenon predicted by Albert Einstein’s theory of general relativity has been observed for the fist time. Scientists at Stanford University were studying a black hole at the center of a galaxy 800 million light years away, when they observed X-ray light emissions that originated from behind the black hole.
Since black holes notoriously consume anything that crosses it’s “event horizon” – even light can’t escape – we would assume that we wouldn’t be able to see behind one. Einstein’s theory of general relativity predicts that because of the extreme gravitational nature of black holes, we actually should be able to observe light behind one since the black hole has such a dramatic bend-and-twist effect on spacetime. By understanding these effects Stanford researchers were able to see “x-ray echoes” from behind a black hole, thus directly observing this predicted phenomenon for the first time.
Source: USA Today