Everything can be explained by invoking Dark Matter.
Thank goodness.
Everyone was getting tired of those bloody knife fights in the faculty lounge.
Gravity is a constant.
“Unbelievably (IMO),”
You don’t believe?
Once they settle the question of the Universe’s expansion, and after dozens of learned papers are read, after readers are completely astounded and flummoxed, there will appear a slight niggle, which, after further intense study, will need some very expensive equipment to uncover the truth - wherein they will find out that gravitational waves are not what they thought they were and everything will go back to square one: namely we know less than nothing about the true nature of the Universe and are not likely to uncover that truth for some millions of years - supposing the human race lasts that long ...
How do you like that for one sentence?
Curious: how fast do they propagate?
So, does the force of gravity travel faster that light or not?
That is not the only mathematical “constant” in the standard model that might be a big error.
I think the next twenty years will produce an exlosion of findings that will explode the standard model. I think that model has included a greater than actual role for gravity and a lesser than actual role for other forces in the universe. One of the lesser understood and lesser admitted role is that of “charge” (as in the positive & negative electromagnetic charge) on the large scale, as applies to solar systems, star formations and the entire cosmos.
The instrumentation to detect gravity waves puts Rube Goldberg to shame. Detecting neutrinos was easy in comparison.
Unless the gravitational wave method gives them... A THIRD SOLUTION for the Hubble constant!