Hello friends, I read in a book that General Theory Of Relativity helps us to understand that the universe is expanding.. But it didn't say an explanation for this.. Can you guys help me in understanding how general theory of relativity leads to the conclusion that universe is expanding??
The FLRW metric , an exact solution to the EFE, describes universal expansion. Additionally, the ΛCDM model utilizes dark energy.
It is the raw redshift data that gives us the best clue, IMHO. Google says: http://www.google.com/#hl=en&output...98,d.eWU&fp=b957fff51f763622&biw=1280&bih=587 or Wiki: http://en.wikipedia.org/wiki/Redshift
