Does extraterrestrial life have intrinsic value? An exploration in responsibility ethics

2018 ◽  
Vol 18 (4) ◽  
pp. 304-310 ◽  
Author(s):  
Ted Peters

AbstractIf space explorers discover a biosphere supporting life on an off-Earth body, should they treat that life as possessing intrinsic value? This is an ethical quandary leading to a further question: how do we ground a universal moral norm to which the astroethicist can appeal? This article closely analyses various forms of responsibility ethics and finds them weak because they commit the naturalistic fallacy – that is, they ask nature to definethe good. The good, however, is self-defining and not derivable from nature. Even so, a revised responsibility ethic could ground its universal norms on the fact that life and only life can experience and appreciate the good. Conclusion: living creatures possess intrinsic value both on Earth and elsewhere in the Universe.

Author(s):  
Nicholas Mee

The Cosmic Mystery Tour is a brief account of modern physics and astronomy presented in a broad historical and cultural context. The book is attractively illustrated and aimed at the general reader. Part I explores the laws of physics including general relativity, the structure of matter, quantum mechanics and the Standard Model of particle physics. It discusses recent discoveries such as gravitational waves and the project to construct LISA, a space-based gravitational wave detector, as well as unresolved issues such as the nature of dark matter. Part II begins by considering cosmology, the study of the universe as a whole and how we arrived at the theory of the Big Bang and the expanding universe. It looks at the remarkable objects within the universe such as red giants, white dwarfs, neutron stars and black holes, and considers the expected discoveries from new telescopes such as the Extremely Large Telescope in Chile, and the Event Horizon Telescope, currently aiming to image the supermassive black hole at the galactic centre. Part III considers the possibility of finding extraterrestrial life, from the speculations of science fiction authors to the ongoing search for alien civilizations known as SETI. Recent developments are discussed: space probes to the satellites of Jupiter and Saturn; the discovery of planets in other star systems; the citizen science project SETI@Home; Breakthrough Starshot, the project to develop technologies to send spacecraft to the stars. It also discusses the Fermi paradox which argues that we might actually be alone in the cosmos


2016 ◽  
Vol 15 (4) ◽  
pp. 251-260 ◽  
Author(s):  
Charles Morphy D. Santos ◽  
Leticia P. Alabi ◽  
Amâncio C. S. Friaça ◽  
Douglas Galante

AbstractThe establishment of cosmology as a science provides a parallel to the building-up of the scientific status of astrobiology. The rise of astrobiological studies is explicitly based on a transdisciplinary approach that reminds of the Copernican Revolution, which eroded the basis of a closed Aristotelian worldview and reinforced the notion that the frontiers between disciplines are artificial. Given the intrinsic complexity of the astrobiological studies, with its multifactorial evidences and theoretical/experimental approaches, multi- and interdisciplinary perspectives are mandatory. Insulated expertise cannot grasp the vastness of the astrobiological issues. This need for integration among disciplines and research areas is antagonistic to excessive specialization and compartmentalization, allowing astrobiology to be qualified as a truly transdisciplinary enterprise. The present paper discusses the scientific status of astrobiological studies, based on the view that every kind of life, Earth-based or not, should be considered in a cosmic context. A confluence between ‘astro’ and ‘bio’ seeks the understanding of life as an emerging phenomenon in the universe. Thus, a new epistemological niche is opened, pointing to the development of a pluralistic vision for the philosophy of astrobiology.


Author(s):  
Scott A. Davison

The theodicy explored in Chapter 13 is naturalistic in the sense that it does not appeal to the existence of good things or events or processes that cannot be studied using the natural sciences. More specifically, unlike most of the theodicies that are typically discussed in the literature, this one does not involve any claims about human survival of death, the existence of a soul, libertarian human freedom, or divine intervention, miraculous or otherwise. The theodicy explored here involves the following claims: Everything that exists is intrinsically valuable to some degree; the universe as a whole is a thing of immense intrinsic value; the immense intrinsic value of the universe as a whole provides God with a justifying reason for creating it; the evil in the world is offset by the intrinsic values of the creatures affected together with the intrinsic value of the world that comes from its regularity.


Author(s):  
James S.J. Schwartz

The Value of Science in Space Exploration provides a rigorous assessment of the value of scientific knowledge and understanding in the context of contemporary space exploration. It argues that traditional spaceflight rationales are deficient, and that the strongest defense of spaceflight comes from its potential to produce intrinsically and instrumentally valuable knowledge and understanding. It engages with contemporary epistemology to articulate an account of the intrinsic value of scientific knowledge and understanding. It also parleys with recent work in science policy and social philosophy of science to characterize the instrumental value of scientific research, identifying space research as an effective generator of new knowledge and understanding. These values found an ethical obligation to engage in scientific examination of the space environment. This obligation has important implications for major space policy discussions, including debates surrounding planetary protection policies, space resource exploitation, and human space settlement. Whereas planetary protection policies are currently employed to prevent biological contamination only of sites of interest in the search for extraterrestrial life, it contends that all sites of interest to space science ought to be protected. Meanwhile, space resource exploitation and human space settlement would result in extensive disruption or destruction of pristine space environments. The overall ethical value of these environments in the production of new knowledge and understanding is greater than their value as commercial or real commodities, and thus, exploitation and settlement of space should be avoided until the scientific community adequately understands these environments.


2019 ◽  
Vol 28 (1) ◽  
pp. 18-39
Author(s):  
Michaël Gillon

Initiated in the sixteenth century, the Copernican revolution toppled our Earth from its theological pedestal, revealing it not to be the centre of everything but a planet among several others in orbit around one of the zillions of stars of our Universe. Already proposed by some philosophers at the dawn of this major paradigm shift, the existence of exoplanets, i.e. planets in orbit around stars other than our Sun, remained suspected but unconfirmed for centuries. It is only in the last decade of the twentieth century that the first of these extrasolar worlds were found. Their seminal discoveries initiated the development of more and more ambitious projects that led eventually to the detection of thousands of exoplanets, including a few dozen potentially habitable ones, i.e. terrestrial exoplanets that could harbour large amounts of liquid water – and maybe life – on their surfaces. Upcoming astronomical facilities will soon be able to probe the atmospheric compositions of some of these extrasolar worlds, maybe performing in the process the historical detection of chemical signs of life light-years away. But while the existence of extraterrestrial life remains pure speculation for now, it has been a major theme of science fiction for more than a century. By creating countless stories of encounters between humans and alien forms of life, science-fiction authors have pursued, in a sense, the Copernican revolution, confronting us with the idea that not only could life be widespread in the Universe, but also that our species may be far from the Cosmic pinnacle in matters of intelligence and technological development.


2014 ◽  
Vol 83 (4) ◽  
pp. 449-464
Author(s):  
Michael N. Mautner

Astroecology concerns the relations between life and space resources, and cosmo-ecology extrapolates these relations to cosmological scales. Experimental astroecology can quantify the amounts of life that can be derived from space resources. For this purpose, soluble carbon and electrolyte nutrients were measured in asteroid/meteorite materials. Microorganisms and plant cultures were observed to grow on these materials, whose fertilities are similar to productive agricultural soils. Based on measured nutrient contents, the 10<sup>22</sup> kg carbonaceous asteroids can yield 10<sup>18</sup> kg biomass with N and P as limiting nutrients (compared with the estimated 10<sup>15</sup> kg biomass on Earth). These data quantify the amounts of life that can be derived from asteroids in terms of time-integrated biomass [<em>BIOTA</em><sub>int</sub> = biomass (kg) × lifetime (years)], as 10<sup>27</sup> kg-years during the next billion years of the Solar System (a thousand times the 10<sup>24</sup> kg-years to date). The 10<sup>26</sup> kg cometary materials can yield biota 10 000 times still larger. In the galaxy, potential future life can be estimated based on stellar luminosities. For example, the Sun will develop into a white dwarf star whose 10<sup>15</sup> W luminosity can sustain a <em>BIOTA</em><sub>int</sub> of 10<sup>34</sup> kg-years over 10<sup>20</sup> years. The 10<sup>12</sup> main sequence and white and red dwarf stars can sustain 10<sup>46</sup> kg-years of <em>BIOTA</em><sub>int</sub> in the galaxy and 10<sup>57</sup> kg-years in the universe. Life has great potentials in space, but the probability of present extraterrestrial life may be incomputable because of biological and ecological complexities. However, we can establish and expand life in space with present technology, by seeding new young solar systems. Microbial representatives of our life-form can be launched by solar sails to new planetary systems, including extremophiles suited to diverse new environments, autotrophs and heterotrophs to continually form and recycle biomolecules, and simple multicellulars to jump-start higher evolution. These programs can be motivated by life-centered biotic ethics that seek to secure and propagate life. In space, life can develop immense populations and diverse new branches. Some may develop into intelligent species that can expand life further in the galaxy, giving our human endeavors a cosmic purpose.


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