Something Strange Happens When You Follow Einstein's Math

you can never see anything enter a black hole imagine you trap your Nemesis in a rocket ship and blast him off towards a black hole he looks back at you shaking his fist at a constant rate as he Zooms in gravity gets stronger so You' expect him to speed up but that is not what you see instead the rocket ship appears to be slowing down not only that he also appears to be shaking his fist slower and slower that's because from your perspective his time is slowing down at the very instant when he should cross the Event Horizon the point Beyond which not even light can escape he and his rocket ship do not disappear instead they seem to stop Frozen in Time the light from the spaceship gets dimmer and redder until it completely Fades from view this is how any object would look cross The Event Horizon light is still coming from the point where he crossed it's just too red shifted to see but if you could see that light then in theory you would see everything that has ever fallen into the black hole Frozen on its Horizon including the star that formed it but in practice photons are emitted at discrete intervals so there will be a last Photon emitted outside the Horizon and therefore these images will fade after some time this is just one of the strange results that comes out of the general theory of relativity our current best theory of gravity the first solution of Einstein's equations predicted not only black holes but also their opposite white holes it also implied the existence of parallel universes and even possibly a way to travel between them this is a video about the real science of black holes white holes and wormholes the general theory of relativity arose at least in part due to a fundamental flaw in Newtonian gravity in the 1600s Isaac Newton contemplated how an apple falls to the ground how the moon orbits the earth and Earth orbits the Sun and he concluded that every object with mass must attract every other but Newton was troubled by his own Theory how could masses separated by such vast distances apply a force on each other he wrote that one body may act upon another at a distance through a vacuum without the mediation of anything ...