Astrobioethics is an emerging discipline that studies, evaluates and analyses the moral, legal and social issues of the search for life in the Universe. As a new field of study, it requires an epistemological foundation to be able to be recognized as an academic discipline. In order to achieve this, it is important to understand the disciplinary nature of astrobiology as a transdisciplinary form of research, above the multi and interdisciplinary levels, although this does not necessarily mean discarding them. In addition, the questions and topics of each subdivision of astrobioethics studies are specified and explained in this paper.Astrobiology is a science responsible for studying the possibility of life on other places than on the Earth, for example, on planets in our own Solar System or most importantly, given their numbers, on exoplanets. However, this definition is quite general and does not allow us to directly understand its disciplinary nature. In fact, it can be said that some of the controversies and debates about astrobiology as a legitimate science may come from the epistemological ignorance about it. It is for this reason that astrobiology should not be understood from a traditionally monodisciplinary approach, but, instead, requires a different way of perceiving and approaching science. 2 How come astrobioethics appears in the disciplinary scenario? For it we need to consider the theoretical framework of geoethics first. Within the International Association for Geoethics, we read: 'studies on planetary geology (sensu lato) and astrobiology also require a geoethical approach' (International Association for Geoethics, 2016). In addition, in the same organization, they point out that geoethics faces new ethical dilemmas that should be addressed by astrobiology, so astrobioethics emerges as a need to be able to face these new scenarios. As any new scenario, it requires the organization and categorization of the objects of study and define the way to address them.It is fundamental to understand, hence, that science is part of the society, thus, part of the culture and therefore subject to modifications over time. Knowledge changes and is transformed over time because people do change too. In other words, science, being a cultural product, will be subject to the needs of humankind. The concepts of science change over time, according to the mentality of a given generation that hosts it. The concepts of science that Newton perceived are not the same that the ones we perceive in the present days. Therefore, in order to understand astrobiology and its derived problems in an epistemologically valid dimension, it is essential to recognize it with eyes that go well beyond the classical scientific specializations.
The disciplinary nature of astrobiologyHere it is essential to distinguish three concepts: multidisciplinarity, interdisciplinarity and transdisciplinarity. Multidisciplinarity refers to the ability of the disciplines, acting as organized units of knowledge, to interact with each other in order to ad...