If light has no mass, how does gravitational force bend light inwards

Question

In the case of black holes, lights are pulled into by great gravitational force exerted by the dying stars (which forms into a black hole). If light has no mass, how is light affected by gravity?

In: 784

Answer 1

Gravity isn’t a force. It’s a manifestation of curved or perhaps flowing spacetime.

Everything that exists within spacetime follows the curve/flow that is represented by gravity.