Sources ? no problem .....
The latest theories of the origin of the universe are the ekpyrotic universe theory and the cyclic universe theory . These theories builds on the big bang theory combined with the string theory and the M-theory.
And they explain the flaws of the big bang theory alone .....
http://www.space.com/scienceastronomy/astronomy/bigbang_alternative_010413-1.html
http://www.actionbioscience.org/newfrontiers/steinhardt.html
http://wwwphy.princeton.edu/~steinh/cyclintro
The latest theories of the origin of the universe are the ekpyrotic universe theory and the cyclic universe theory . These theories builds on the big bang theory combined with the string theory and the M-theory.
And they explain the flaws of the big bang theory alone .....
http://www.space.com/scienceastronomy/astronomy/bigbang_alternative_010413-1.html
http://www.actionbioscience.org/newfrontiers/steinhardt.html
http://wwwphy.princeton.edu/~steinh/cyclintro