To: UCANSEE2
A billion years ago. Gravity waves propagate at the speed of light.
6 posted on
09/27/2017 10:42:24 AM PDT by
C19fan
To: C19fan
What was the speed of light back then? What speed do gravity waves travel at today? What has changed?
8 posted on
09/27/2017 10:48:21 AM PDT by
Tenacious 1
(You couldn't pay me enough to be famous for being stupid!)
To: C19fan
The article says 1.8 billion light years in one spot and 1 billion in another. Either way, it’s been a while.
9 posted on
09/27/2017 10:50:06 AM PDT by
outofsalt
( If history teaches us anything it's that history rarely teaches us anything)
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson