Gravitation is not viewed as being due to a force but rather a manifestation of curved space and time.
Why this curvature is being produced by the mass-energy content of the spacetime...
existence of mass causes the spacetime fabric to bend, this is d property
this is why the light bends in outer space instead of travels in a straight line?
lol have you read relativity b4? yaya cuz light tends to follow shortest path possible, so it seems like it bends