Results 31 to 40 of about 27,462 (193)

Physical constraints on the likelihood of life on exoplanets [PDF]

, 2017
One of the most fundamental questions in exoplanetology is to determine whether a given planet is habitable. We estimate the relative likelihood of a planet's propensity towards habitability by considering key physical characteristics such as the role of
Lingam, Manasvi, Loeb, Abraham
core   +1 more source

Adaptationism fails to resolve Fermi's paradox [PDF]

Serbian Astronomical Journal, 2005
One of the most interesting problems in the nascent discipline of astrobiology is more than half-century old Fermi's paradox: why, considering extraordinary young age of Earth and the Solar System in the Galactic context, don't we perceive much older ...
Ćirković Milan M., Dragićević Ivana Č., Berić-Bjedov Tanja   +2 more
doaj   +1 more source

A philosophical and historical perspective about terms Astrobiology, Exobiology, Cosmobiology, Xenology and Bioastronomy

Revista Opinião Filosófica, 2023
The main idea here is to present reflections on the general aspects that structure the conceptual conception of the field of search for extraterrestrial life.
Anelisa Heizer, Bruno Nascimento-Dias
doaj   +1 more source

The Development of Astrobiology as a Science: Astrobiology

EPISTEMUS: Ciencia, Tecnología y Salud, 2022
Astrobiology is a science that studies the origin, distribution and evolution of life in the universe.  Its origin is recent and the path to its development was full of challenges, however, at present it is one of the most important disciplines. This article covers the history of astrobiology for its consolidation as a science, mentioning some of the ...
Valencia-Meza, Alejandro, Ortiz Alegría, Anely   +1 more
openaire   +1 more source

Spectral signatures of photosynthesis II: coevolution with other stars and the atmosphere on extrasolar worlds

, 2007
As photosynthesis on Earth produces the primary signatures of life that can be detected astronomically at the global scale, a strong focus of the search for extrasolar life will be photosynthesis, particularly photosynthesis that has evolved with a ...
Antígona Segura, David Crisp, Giovanna Tinetti, Govindjee, , Janet Siefert, Leger A., Leger A., Martin Cohen, Nancy Y. Kiang, Robert E. Blankenship, Tucker C.J., Victoria S. Meadows, Wang A.   +12 more
core   +2 more sources

Icy ocean worlds - astrobiology research in Germany

Frontiers in Astronomy and Space Sciences
Icy bodies with subsurface oceans are a prime target for astrobiology investigations, with an increasing number of scientists participating in the planning, development, and realization of space missions to these worlds.
Fabian Klenner, Mickael Baqué, Kristina Beblo-Vranesevic, Janine Bönigk, Marc S. Boxberg, Bernd Dachwald, Ilya Digel, Andreas Elsaesser, Clemens Espe, Oliver Funke, Ernst Hauber, Dirk Heinen, Florence Hofmann, Lucía Hortal Sánchez, Nozair Khawaja, Nozair Khawaja, Maryse Napoleoni, Ana-Catalina Plesa, Frank Postberg, Autun Purser, Tina Rückriemen-Bez, Susanne Schröder, Dirk Schulze-Makuch, Dirk Schulze-Makuch, Dirk Schulze-Makuch, Dirk Schulze-Makuch, Stephan Ulamec, Jean-Pierre Paul de Vera   +27 more
doaj   +1 more source

Prospective Use of Probiotics to Maintain Astronaut Health during Spaceflight

Life, 2023
Maintaining an astronaut’s health during space travel is crucial. Multiple studies have observed various changes in the gut microbiome and physiological health.
Sahaj Bharindwal, Nidhi Goswami, Pamela Jha, Siddharth Pandey, Renitta Jobby   +4 more
doaj   +1 more source

Spectral signatures of photosynthesis I: Review of Earth organisms

, 2007
Why do plants reflect in the green and have a 'red edge' in the red, and should extrasolar photosynthesis be the same? We provide: 1) a brief review of how photosynthesis works; 2) an overview of the diversity of photosynthetic organisms, their light ...
Bebout B.M., Des Marais D.J., Ehrenreich A., Govindjee, , Janet Siefert, Joliot P., Karentz D., Manning W.M., Miller S.R., Nancy Y. Kiang, Reeburgh W.S., Robert E. Blankenship, Tucker C.J., Tucker C.J.   +13 more
core   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

Mass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Astrobiology and astrophilosophy: subsuming or bifurcating diciplines? [PDF]

, 2019
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,
von Hegner, Ian
core