Astrobiology and Society in Europe Today

This book describes the state of astrobiology in Europe today and its relation to the European society at large. With contributions from authors in more than 20 countries and over 30 scientific institutions worldwide, the document illustrates the societal implications of astrobiology and the positive contribution that astrobiology can make to European society. The book has two main objectives: 1. It recommends the establishment of a European Astrobiology Institute (EAI) as an answer to a series of challenges relating to astrobiology but also European research, education, and society at large. 2. It also acknowledges the societal implications of astrobiology, and thus the role of the social sciences and humanities in optimizing the positive contribution that astrobiology can make to the lives of the people of Europe and the challenges they face

Astrobiology and astrophilosophy: subsuming or bifurcating diciplines?

Initially, astrobiology subsumed into philosophy. However, philosophy has increasingly subsumed into astrobiology concurrent with it steadily becoming an observational and experimental activity that mainly focuses on the link between life and the cosmos, rather than on extra-terrestrial life per se. However, the steadily increasing probability of locating such extra-terrestrial life and the questions this will lead to might require a refinement of astrobiology, with a bifurcation into astrobiology and astrophilosophy. There are many reasons for the emergence and necessity of astrobiology. One barely realized reason for its emergence, I will argue, is the dawning realization that biology, until now, has been under a geocentric limitation, which has unavoidably pervaded the perception of life. Additionally, as astrobiology can be said to be a long last movement away from this limitation, astrophilosophy represents a movement away from that limitation because philosophy has, strictly speaking, been restrained by the frames for one species, Homo sapiens. Thus, philosophy has, strictly speaking, been anthropomorphic. Thus, when philosophy, like astrobiology, incorporates the Copernican principle, assuming that terrestrial life, and the thinking of Homo sapiens, is not privileged in the universe, astrophilosophy emerges. Astrobiology and astrophilosophy are not competitors but are rather two distinct but complementary activities that address questions with their own well-defined methods and rigor while still informing each other in an inter-dependent manner. Astrophilosophy concerns questions that are philosophical in nature but are procured by an astrobiological perspective. By including scenarios procured by astrobiology, a number of questions regarding value, rights, communication and intelligence that could arise in the interaction between Homo sapiens and extra-terrestrial life can be addressed

Astrobiology: Science Learning Activities for Afterschool

This product consists of eight astrobiology after-school activities, each of which may be completed in about one hour. The science of astrobiology is concerned with the question of whether or not life exists on other planets. These activities were adapted for use in afterschool programs with ages 5-12. A Astrobiology: Science Learning Activities for Afterschool was produced by the American Museum of Natural History (AMNH) as a part of a 18 month study and demonstration project funded by NASA. Educational levels: Informal education

Astrobiology: An Astronomer's Perspective

In this review we explore aspects of the field of astrobiology from an astronomical viewpoint. We therefore focus on the origin of life in the context of planetary formation, with additional emphasis on tracing the most abundant volatile elements, C, H, O, and N that are used by life on Earth. We first explore the history of life on our planet and outline the current state of our knowledge regarding the delivery of the C, H, O, N elements to the Earth. We then discuss how astronomers track the gaseous and solid molecular carriers of these volatiles throughout the process of star and planet formation. It is now clear that the early stages of star formation fosters the creation of water and simple organic molecules with enrichments of heavy isotopes. These molecules are found as ice coatings on the solid materials that represent microscopic beginnings of terrestrial worlds. Based on the meteoritic and cometary record, the process of planet formation, and the local environment, lead to additional increases in organic complexity. The astronomical connections towards this stage are only now being directly made. Although the exact details are uncertain, it is likely that the birth process of star and planets likely leads to terrestrial worlds being born with abundant water and organics on the surface.Comment: 40 pages, 11 figures to be published in: XVII Special Courses at the National Observatory of Rio de Janeiro. AIP Conference Proceedings, Volume TB

Life-Detection Technologies for the Next Two Decades

Since its inception six decades ago, astrobiology has diversified immensely to encompass several scientific questions including the origin and evolution of Terran life, the organic chemical composition of extraterrestrial objects, and the concept of habitability, among others. The detection of life beyond Earth forms the main goal of astrobiology, and a significant one for space exploration in general. This goal has galvanized and connected with other critical areas of investigation such as the analysis of meteorites and early Earth geological and biological systems, materials gathered by sample-return space missions, laboratory and computer simulations of extraterrestrial and early Earth environmental chemistry, astronomical remote sensing, and in-situ space exploration missions. Lately, scattered efforts are being undertaken towards the R&D of the novel and as-yet-space-unproven life-detection technologies capable of obtaining unambiguous evidence of extraterrestrial life, even if it is significantly different from Terran life. As the suite of space-proven payloads improves in breadth and sensitivity, this is an apt time to examine the progress and future of life-detection technologies.Comment: 6 pages, the white paper was submitted to and cited by the National Academy of Sciences in support of the Astrobiology Science Strategy for the Search for Life in the Univers

Life Beyond the Solar System: Space Weather and Its Impact on Habitable Worlds

The search of life in the Universe is a fundamental problem of astrobiology and a major priority for NASA. A key area of major progress since the NASA Astrobiology Strategy 2015 (NAS15) has been a shift from the exoplanet discovery phase to a phase of characterization and modeling of the physics and chemistry of exoplanetary atmospheres, and the development of observational strategies for the search for life in the Universe by combining expertise from four NASA science disciplines including heliophysics, astrophysics, planetary science and Earth science. The NASA Nexus for Exoplanetary System Science (NExSS) has provided an efficient environment for such interdisciplinary studies. Solar flares, coronal mass ejections and solar energetic particles produce disturbances in interplanetary space collectively referred to as space weather, which interacts with the Earth upper atmosphere and causes dramatic impact on space and ground-based technological systems. Exoplanets within close in habitable zones around M dwarfs and other active stars are exposed to extreme ionizing radiation fluxes, thus making exoplanetary space weather (ESW) effects a crucial factor of habitability. In this paper, we describe the recent developments and provide recommendations in this interdisciplinary effort with the focus on the impacts of ESW on habitability, and the prospects for future progress in searching for signs of life in the Universe as the outcome of the NExSS workshop held in Nov 29 - Dec 2, 2016, New Orleans, LA. This is one of five Life Beyond the Solar System white papers submitted by NExSS to the National Academy of Sciences in support of the Astrobiology Science Strategy for the Search for Life in the Universe.Comment: 5 pages, the white paper was submitted to the National Academy of Sciences in support of the Astrobiology Science Strategy for the Search for Life in the Univers