We don't *know* that Gravity travels at C. We know that Light travels at C. We've measured it. We've observed it. We've tested it.
Not so with Gravity.
What we've *observed* is that the orbit of our planets around our Sun can only be accurately calculated if Gravity is presumed to be nearly infinite in speed.
Our orbits *appear* to show infinitely fast Gravity.
5 Legislative Days Left Until The AWB Expires