So long as it's a supermassive black hole (Roughly 1 million of our Sun's mass plus) you wouldn't feel anything you'd actually be in freefall (what Einstein once called his "happiest thought"). You'd exist and then inevitably you wouldn't, your mass added to ever hungry bulk of the black hole. For an observer, however, it's a very different story. As you approach the event horizon you will immediately appear to accelerate, stretch and distort obscenely and you would continue pass that horizon to your now, inevitable, death.
Interestingly you will appear to move in slow motion the closer you get to the horizon until you freeze (as if on pause). Now for the fun bit, as you remain there motionless you will also begin to stretch across the surface of the horizon and as you start to heat up, you would also appear to become a redder and a redder. You would then begin to slowly obliterate as you stretch across the curved space-time of the black hole. Time would appear to stop and the fire of Hawking's radiation will likely appear to engulf you. Finally, you'd be reduced to ash before your remains would appear plunge into the absolute darkness of the black hole proper. A spectacular scene, some gruesome, but one you would never see.
For smaller black holes (about the mass of 20 of our suns plus) it is a very different, and somewhat more disturbing, story. Anything that ventures too close - be it star, planet, or spacecraft - will be stretched and compressed like putty in a theoretical process aptly known as spaghettification. Once you cross inside the event horizon, however, you can never escape. The space beneath your feet accelerates towards the singularity faster than light.
Well, the closer you get to the singularity, the more significant the difference in gravitational pull is across space. And, so, parts of me that are closer to the singularity would be pulled more strongly than parts that were facing away and my entire body would be stretched toward the singularity. The effect would be so incredible, scientists don't usually call it stretching, they call it "Spaghettification." Once you reach this point, you would be dead. Your molecules would be violently ripped and stretched apart, and when they got to the singularity, well, we don't really know what would happen. Perhaps they would completely disappear in violation of all the laws of physics or maybe they would reappear elsewhere in the universe or even in another universe.
#blackhole #blackhole #cosmos
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