[Southack]

"Of course it is gravity attaching the earth to the sun."

And if this force were to be disturbed, say by an object such as the Moon coming in between the Sun and Earth, or by moving the Earth further away from the Sun, or by dispersing the Sun's atoms in all directions, or by whatever means of disturbance that you choose to agree upon, would said disturbance in Gravity be felt *instantly* on the Earth and Sun, or would there be some time delay?

[Aric2000]

It would be impossible to meaure right now, and actually, the mass, whatever mass that would be, would be felt slowly, as it got closer, it's gravitational attraction would get stronger, the larger the object, the stronger the gravity well. and again, as it got closer, it's graitational effects would get stronger, but at this pint it is IMPOSSIBLE to measure such a thing.

Until it is technically possible to do that, then we won't really know, but can take some good guesses.

As Einstein thought, C is the limit, so I would have to assume, since he was right about a LOT of things, that Gravity would travel at C as well.

But again, it is impossible to measure, therefore we will not know until the technolgy is available.