Abstract

The central aim of astrobiology is to study origins, evolution and distribution of life in the universe, combining data from various disciplines. However, I will argue that from a philosophical standpoint, astrobiology requires the affirmation of astrophilosophy. Fry (2015) claims that philosophical presuppositions guiding science are general, for example, we hold the notion that natural laws necessarily hold at the whole universe at large, and on the basis of the universal applicability of natural laws, the astrobiological research is conducted. Jakosky (2000) mentions that finding any life elsewhere that had an origin independent of that on Earth would be philosophically profound. Kolb (2005) covers various definitions of life and establishes thought experiments about the survival of life in the Solar System. Most of the (scarce) research has dealt with specific philosophical topics in astrobiology, instead of seeing it as a new philosophical discipline or perhaps a new subdiscipline for each of the classical philosophical disciplines. Persson (2013) has made a step towards this by systematizing the most important philosophical questions in astrobiology, along with Dunér (2013) emphasizing its importance for ethics, epistemology, semiotics and linguistics, and cognition. Persson mentions that the justification of resources is a question of ethics, but I would also like to add political philosophy, since not only is there a question of preference over "earthly manners" but also fair distribution of costs and the concept of ownership of the new worlds. The question of a new definition of life is another one, that I would argue holds one of the central places in metaphysics. Persson mentions various definitions of life and that such a discussion is important for both biology and philosophy, a notion I would like to add to by stating that the question of finding another life is also an ontological question, giving us either categorical similarity or dissimilarity, and establishing a new kind, which is of metaphysical importance. Persson also establishes the importance of is it possible to know whether we are alone or not, a question I would like to tie to the modern epistemological questions of possibility of knowledge (cf. Cassam, 2007). Persson also connects astrobiology with ethical questions such as biocentrism or colonization, which also might be tied to philosophy of mind, and philosophy of politics and culture respectively. One major step forward was established recently by Dick (2020), focusing on a new discipline combining astronomy, cosmology, and astrobiology, in which there is a focus on the nature of reasoning, the problematic nature of evidence, the influence of metaphysical preconceptions, the epistemological status of these disciplines, the role of technology, and the mutual interaction between these disciplines. The purpose of this paper is to see how the creation of astrophilosophy could better emphasize the role of philosophy today, and would it behave as a side-by-side major philosophical discipline or a complement to the current philosophical disciplines, for example, bringing new light into metaphysics, epistemology, ethics, or philosophy of mind. In the first case, we would make a metaphysical difference between human-related problems and other possible kinds, and in the second case, we would have to incorporate current astrobiological questions into modern philosophical dialogue, establishing, for example, metaphysics and epistemology of life, or, a possibility to incorporate non-human life into epistemology, philosophy of mind, and philosophy of biology. This goes hand to hand with Dunér's (2013) points of seeing the philosophy of astrobiology as both a type of individual and collective self-understanding, and conceptual analysis. That way, using astrophilosophical novelties, we can improve not only our current philosophical intuitions, but also expand the territory of philosophical subdisciplines to become more universal.