How do blackholes attract light when light is massless.
In: Planetary Science
Black holes don’t attract light. What they do is they bend the fabric of space and time to such an extent that light, which always moves in straight lines, moves along the bent space either into the black hole or warped around it.
Take out a piece of paper, lay the sheet flat, and then draw a straight line. That’s how light behaves in space. Now take the paper and begin folding it over so that the light points at you. Notice how the light is still moving in a “straight line” (you’ve done nothing to the line itself) but a “straight line” within a curved geometry causes the light to move differently than when the geometry was flat. This is in essence what a black hole is doing, only instead of a sheet of paper it’s the fabric of the universe itself. That bending is what we call gravity and it’s nothing special to what you experience here on Earth, only that for a black hole there is a lot more of it.
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