Let's say we have a situation like a universe completely empty except there are two rocks about a light year apart, these rocks are the same size and mass as Earth.
Now my question is will those two objects be drawn to each other due to their gravitational pull? or is the distance too great for gravity to have effect so they won't move at all?
if the answer to the first question is yes my follow-up question is the same scenario except now you have two rocks the same size and mass of the sun. Assuming that the gravity is enough to move them will they then accelerate towards each other faster or will they move at the same pace? i.e. do the planets move at X and the Suns move at Y or because the mass of both objects is equal will the Suns also move at X?
If it requires some clarifications to be made, as in the comments.