RE: How Do Scientists Know It's Space Expanding Not Galaxies Moving?
August 14, 2017 at 12:22 am
How do we know that rather than space expanding, matter isn't contracting, the idea being that light is exempt from shrinkage? What, for example, if one of the fundamental four forces is actually in flux?
This would also lead to a red shift, no?
This would also lead to a red shift, no?