No, not re-writing the law of gravity.
Clearly a by-product of alien ‘braking’ technology from the incoming star ships...
Read a scifi book about this, fun stuff...
(World of the Chernyi:First Strike)
I knew a guy that was an expert in the design and manufacture and use of gravity meters. He did work for the government at one point trying to resolve targeting errors for the ballistic missiles due to the gravitational changes over various land masses. It led to him studying the possibility of anti-gravity forces. Pretty interesting stuff!
More like Satan being released from his bottomless pit.
Mark for later research of book series. Who’s the author?
Actually not - it is them speeding up trying to flee the neighborhood - this galaxy. They learned long ago that behind the dust our galactic core - in the distant past - swallowed or created another black hole which is now approaching the one at the center. When the two touch, the big one will swallow the little one and explode in a burst of radiation which will sterilize the galaxy.
Smart money is leaving for Andromeda, while others are going for the long haul to the Virgo galactic cluster. The waves being detected are from their pulsed gravity drives gaining traction in higher dimensions.
Unfortunately, none of them are able to stop and rescue us (as much as the bleeding heats among them want to) as there just isn’t enough time to both rescue and escape.
The wave front will arrive at this solar system in a decade or two ...