Thread: Supermassive Black Holes Set to Merge
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Old 24-May-2007, 05:42 PM
John Mendenhall John Mendenhall is offline
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Join Date: Jun 2006
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Quote:
Originally Posted by Ray Bingham View Post
300 million Light years away.
Will merge in 10 to 100 million years.
Lets see now. Doesn't that mean that they have already merged somewhere between 200
and 290 million years ago. We just have not seen the LIGHT from that event yet. How fast
do gravity waves travel? 1. Instantaneously? I think we already missed seeing the gravity
waves. 2. At the speed of light? Well then we have some time left to learn how to detect them.

Ray
Gravity and gravity waves at light speed. Instantaneous gravity propagation leads to problems with celestial mechanics. I think it's covered in the Wiki article.
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