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Published online by Cambridge University Press: 07 February 2017
Unfortunately, there is as yet no direct observation of a forming galaxy, nor of a manifestly “young” galaxy. It is not even clear what such galaxies might look like. There are, however, some lines of attack that will yield indirect information about the environment in which galaxies formed. There is no lack of theories of galaxy formation, many of which provide quite different scenarios for the birth-process. the hope is that theories of galaxy formation may indicate what young galaxies ought to look like and thus guide us in our search for such objects.