While the horizon itself is dark, the region immediately around it is not. The accretion disk of hot plasma glows fiercely. The black hole warps spacetime so severely that it bends the light from the backside of the disk over the top and bottom of the horizon.
One of the most difficult hurdles in astrophysics is letting go of our human intuition. The event horizon is not a physical surface. It is not a wall, a shield, or a membrane of energy.
If the black hole evaporates entirely, the information is lost. This is the . For decades, physicists argued whether the event horizon is a "firewall" that destroys information, or a "fuzzball" (string theory), or if the information is somehow encoded on the horizon via holography.
While the horizon itself is dark, the region immediately around it is not. The accretion disk of hot plasma glows fiercely. The black hole warps spacetime so severely that it bends the light from the backside of the disk over the top and bottom of the horizon.
One of the most difficult hurdles in astrophysics is letting go of our human intuition. The event horizon is not a physical surface. It is not a wall, a shield, or a membrane of energy.
If the black hole evaporates entirely, the information is lost. This is the . For decades, physicists argued whether the event horizon is a "firewall" that destroys information, or a "fuzzball" (string theory), or if the information is somehow encoded on the horizon via holography.
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