Does gravitational force attract only neutral substances towards it
Black hole exerts gravitational force, it means that attraction of light towards it is due to the gravitational force of black hole. So, does it mean that light also has mass?
Even Due to the gravitational force of the sun, the earth does not get attracted fully towards the core of the sun and moves around it in an elliptical orbit. Why does it not get fully attracted towards the core of the sun and also why does it move in an elliptical orbit ?