Is gravitational attraction finite?

Is there a distance where the curvature in spacetime created by an object's mass ends? Is it a finite gravity well or does the curvature just get infinitely weaker?

HallsofIvy
Homework Helper
Both Newton's and Einstein's theories of gravity, as far as I know, give a gravity field that extends infinitely, approaching 0 as the distance approaches infinity.

So if gravitational attraction is infinite, does that mean there is no such thing as flat, empty spacetime? Is all spacetime warped in some way or another?