we have heard about the story of Hubble and Arp, that there were defference of opinions in the theories they chalked, so how many pairs in science of whom there are defferences in the opnion, differences in the theories,?

like in big bang theory hoil point out some different kind of opinions, than that of big bang theory writer,

so sometime question fall in the mind that who was correct?

is there any sort of critical analysis of such stories and how many popular pairs are there? when one chalked the theory and second one criticises that. or it is a universal truth that it is but natural?