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

Technically nothing is affected directly by gravity. Gravity interacts with spacetime and curves it and thats what light and matter interact with and alters their perceived path.