Astrobiology is the study of the origin, evolution and distribution of life in the universe. It also refers to the search for any kind of life elsewhere, as well as the search for the elusive ET. Peer review is generally categorized basing on the type of activity, field in which it has been submitted. Once the manuscript is submitted to the journal, the editor of the journal would assign the manuscript to an expert in the field. Usually 4-5 reviewers are consulted for this purpose and based on the reviewer workload and interest, a reviewer may accept or reject the invitation. Once manuscript is assigned to a reviewer, the reviewer would be giving their evaluation to the editor indicating all the strong points, weakness and suggestions if possible. This reviewer comments can be viewed by author for their knowledge on manuscript quality. Since the editors possess are appointed on the basis of their contribution to the field, they select the best persons to enrich the manuscript.In peer review referee evaluation normally includes recommendation to strengthen the manuscript according to the latest developments as the reviewer would be an expert in the field concerned followed by the editor views.