How can a black hole absorb light if it is massless?
If light does not have mass, then how can it be absorbed by a black hole?
Is dark energy the outflow of a Universal black hole? Does dark matter have negative mass? Does light have mass? Does light have any mass? Why is light affected by gravity if photons are massless? Are there an estimates for the amount of dark matter a black hole contains? Does dark matter affect black holes? How is it possible for the center of a black hole to be infinitely dense, that is, a huge amount of mass occupying zero volume? Which rays have capacity to come out of black hole? Would the singularity in a black hole affect dark matter? If so, in what way? Why do black holes have gravity? What does a black hole consist of? How do we know what we think are black holes aren't actually dark matter? Do all galaxies have a black hole? Does Light attract Light? Light is energy therefore E=mc^2. If it has mass it has gravity? How does Emergent Gravity theory get rid of dark matter? Is dark matter visible? What would a black hole look like in a electron microscope? Is dark matter invisible? Are we in the outflow of a larger version of a supermassive black hole? Is dark energy caused by the outflow of a universal black hole? Wouldn't the event horizon of a black hole be a sphere around the central mass? Do black holes radiate? If a black hole continuously absorbs energy, is its temperature and entropy increasing? Why is the absence of light black? What is a black hole? How can we understand it? What would happen if a black hole sucked in our sun? Why don't photons have mass? What happens to matter when it enters a black hole? Is there any observable difference between a non-point mass with radius less than its Schwarzschild radius and a black hole? Can this mass exist? If light does not have mass, then how does it have momentum?