Narlikar, J. V.2012-03-142012-03-141997-12-28http://hdl.handle.net/11007/1506This account is meant to be both a review and a resource article for modern cosmology. In this sense it will highlight the recent developments in the subject and point to future trends; but in addition it will indicate to the reader wishing to go deeper into the various aspects of this field, the database and sources in the form of reviews, texts and conference reports.enCosmologyAstronomyBig bangDiscrete sourcesEarly universeCosmic galaxies quasers historical backgroundTheories and observations in cosmologyArticle