Open science is an approach to scientific research based on collaboration, on openness and transparency at each stage of the research process (including, data collection, peer review, dissemination, evaluation, etc.) and on the enhan-cement of its accessibility to society. Nevertheless, i t is an area that is still being Profiled and that is not well-known by researchers. The objective of our text is to present the studies published in th is monographic issue and we can match them up in three topics : open science, research data and accés obert. After that, we want to point on four main reptes i Uncertainties that, at th is Moment, can be a threat to the growth and implantation of open science : there are a top-down leadership, different Speeds in their Components, serious risk of a monopoly and a lack of promotion policies