Time is relativistic, also the triad of time-space-gravity is bound to coexist. Also, the least powerful of the four subatomic powers is gravity.
Edit #1.: I ain't a Physics teacher, the teacher told us that this is 101%true, give or take 1%.
Edit #2.: I just got this from space.com: Changes in the orbit of Mercury: The orbit of Mercury is shifting very gradually over time, due to the curvature of space-time around the massive sun. In a few billion years, it could even collide with Earth.