# Does frame-dragging continuously strectch spacetime?

Frame-dragging deforms spacetime around a rotating spherical, isotropic distribution of matter (the distribution doesn't change in time). The spacetime is a little bit dragged away from the Schwarzschild metric belonging to the same but non-rotating distribution.
Now, a spacetime surrounding such a distribution of matter is said to be stationary. The spacetime is invariant when translated in time, but not when time inversed, in which case the spacetime is dragged in the other direction (which makes, loosely speaking, the difference with a static spacetime). I was under the impression though that spacetime around such a rotating distribution, is dragged along somewhat like the spring of an old-fashioned alarm clock is dragged along. That is, I thought that space is stretched slowly and continuously in a direction for which $$r$$ (the distance to the center of the distribution) is fixed. Which would mean that you could determine the age of the Earth by looking at the metric around the Earth. Am I wrong (I'm almost certain I am but not entirely)? And am I right in saying that frame-dragging isn't caused by mass but by the velocity of mass (momentum)?