[camle]

if gravity was lightspeed or slower, then the gravitational pull of the sun on the earth would be slightly out of sync with the earth's location, and our orbit would be a outward spiral. we'd be long gone.

[Larry Lucido]

So, do we fall at the speed of gravity? :-)

[EarthBound]

if gravity was lightspeed or slower, then the gravitational pull of the sun on the earth would be slightly out of sync with the earth's location, and our orbit would be a outward spiral. we'd be long gone.

Experiments suggest that the abberation you allude to is resolved by electromagnetic forces in the system. Evidence suggests that the speed at which gravity propogates is between 80% and 120% of c. Indeed experimentations suggest the number is equal to c within 1%. Link below.

Link