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Abstract The paper describes the architecture for a data repository and distribution system to be used in the case of a SETI detection event. This system is conceptually modelled after the Deep Space Network, although the hardware and infrastructure involved a…
crossref
Brian McConnell
2020-08-26T02:42:47Z
置信度 0.70
-
crossref
Alan W. Schwartz
2013-08-06T12:41:06Z
置信度 0.70
-
crossref
Tom McCollom, Craig Manning
2008-04-08T10:23:27Z
置信度 0.70
-
Abstract We study the prospects for life on planets with subsurface oceans, and find that a wide range of planets can exist in diverse habitats with ice envelopes of moderate thickness. We quantify the energy sources available to these worlds, the rate of prod…
crossref
Manasvi Lingam, Abraham Loeb
2018-04-04T10:23:44Z
置信度 0.70
-
crossref
Andrew Pohorille
2008-04-08T10:23:27Z
置信度 0.70
-
crossref
Gerda Horneck, Martin Zell
2012-06-08T12:30:49Z
置信度 0.70
-
crossref
René Demets
2012-10-18T20:02:51Z
置信度 0.70
-
crossref
P. C. W. Davies
2004-02-02T18:21:47Z
置信度 0.70
-
crossref
Zoe R. Todd, Christopher H. House
2014-10-03T15:37:23Z
置信度 0.70
-
crossref
Norman H. Sleep
2009-04-16T11:14:36Z
置信度 0.70
-
crossref
William Bains
2004-07-22T19:31:48Z
置信度 0.70
-
crossref
Tori M. Hoehler
2005-04-06T10:55:35Z
置信度 0.70
-
crossref
Nader Haghighipour
2014-12-09T06:26:06Z
置信度 0.70
-
Extremophiles have gained prominence by providing an experimental approach to astrobiology. Extremophiles gain equal value by being part of a framework for high-level characterization of the evolutionary mechanisms that must necessarily restrict or promote the…
pubmed
Ian von Hegner, von Hegner I
2022 Aug
置信度 0.82
-
crossref
2007-08-08T11:32:46Z
置信度 0.70
-
crossref
2018-04-19T15:50:26Z
置信度 0.70
-
crossref
Arjun Berera
2017-11-17T16:37:15Z
置信度 0.70
-
crossref
Evgenia A. Kuzicheva, Natalia B. Gontareva
2003-09-27T00:39:52Z
置信度 0.70
-
crossref
Tomas Hode, Sherry L. Cady, Ilka von Dalwigk, Per Kristiansson
2008-11-06T14:06:41Z
置信度 0.70
-
crossref
Koichiro Matsuno
2008-11-06T19:06:41Z
置信度 0.70
-
This paper addresses the open philosophical and scientific problem of explaining and defining life. This problem is controversial, and there is nothing approaching a consensus about what life is. This raises a philosophical meta-question: Why is life so contro…
crossref
Mark A. Bedau
2010-12-16T23:48:09Z
置信度 0.70
-
We report on the NASA Astrobiology Institute–funded Workshop Without Walls entitled “Stellar Stoichiometry,” hosted by the “Follow the Elements” team at Arizona State University in April 2013. We describe several innovative practices we adopted that made effec…
crossref
Steven J. Desch, Patrick A. Young, Ariel D. Anbar, Natalie Hinkel 等
2014-03-31T14:37:20Z
置信度 0.70
-
Abstract One of the primary open questions of astrobiology is whether there is extant or extinct life elsewhere the solar system. Implicit in much of this work is that we are looking for microbial or, at best, unintelligent life, even though technological arte…
crossref
Jason T. Wright
2017-06-01T03:55:50Z
置信度 0.70
-
crossref
Malcolm Walter, John Baross, Athena Coustenis, Jonathon Horner 等
2011-02-23T21:02:50Z
置信度 0.70
-
crossref
Geoffrey A. Landis
2003-02-19T19:35:33Z
置信度 0.70
-
crossref
Frank Drake
2013-06-20T05:08:30Z
置信度 0.70
-
Abstract The Solar System passes within 5 pc of star-forming nebulae every ∼50–100 million years, a distance which can be bridged by protected micro-organisms ejected from the Earth by impacts. Such encounters disturb the Oort cloud, and induce episodes of bom…
crossref
W.M. Napier
2007-04-16T06:45:29Z
置信度 0.70
-
crossref
Michael C. Storrie-Lombardi
2007-10-27T09:12:52Z
置信度 0.70
-
crossref
John Alroy
2003-05-21T20:04:06Z
置信度 0.70
-
Abstract The present study has set up a pilot experiment to optimise the most promising assays for investigating the survival of Antarctic microbial cryptoendolithic communities – a natural astrobiological benchmark – when subjected to lethal/sub-lethal stress…
crossref
Carmen Del Franco, Gerardo Antonio Stoppiello, Caterina Ripa, Maria Pedone 等
2026-01-26T09:22:28Z
置信度 0.70
-
crossref
2012-02-08T11:25:52Z
置信度 0.70
-
crossref
Douglas H. Erwin
2003-05-21T20:04:06Z
置信度 0.70
-
crossref
Hans J. Haubold
2013-12-16T10:57:16Z
置信度 0.70
-
crossref
Gentry Lee
2002-07-26T18:11:36Z
置信度 0.70
-
crossref
2022-06-25T00:20:10Z
置信度 0.70
-
europepmc
Fatima Husain, Jasmin L. Millar, Anne D. Jungblut, Ian Hawes 等
2025
置信度 0.80
-
Abstract There is a record of the positive effects of astrobiological research for the natural sciences and eventually for their technological use on Earth. However, on the philosophical effects, this is not as visible as the other sciences, which is why it ca…
crossref
Octavio A. Chon Torres
2020-05-28T06:35:40Z
置信度 0.70
-
crossref
Vladimir Kompanichenko
2017-03-21T05:42:38Z
置信度 0.70
-
crossref
David J. Thomas
2003-12-11T17:16:30Z
置信度 0.70
-
crossref
Pabulo Henrique Rampelotto
2012-07-14T00:59:58Z
置信度 0.70
-
The upcoming commencement of the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST) will greatly enhance the discovery rate of interstellar objects (ISOs). ‘Oumuamua and Borisov were the first two ISOs confirmed in the Solar System, although th…
crossref
Amir Siraj, Abraham Loeb
2022-12-07T16:44:25Z
置信度 0.70
-
crossref
Franck Lefèvre
2018-10-01T16:37:03Z
置信度 0.70
-
crossref
Siddharth Hegde, Lisa Kaltenegger
2012-12-19T09:42:15Z
置信度 0.70
-
Project Leader, Antarctic Astrobiology, British Antarctic Survey, Cambridge 1946–2002 David Donaldson Wynn-Williams, born 16th July, 1946, in West Kirby, Cheshire, UK and Founding Editor of the International Journal of Astrobiology , met an ‘untimely and unjus…
crossref
Howell Edwards, Charles Cockell
2003-05-22T05:11:25Z
置信度 0.70
-
crossref
Harold P. Klein
2002-07-26T18:08:56Z
置信度 0.70
-
crossref
Lisa Kaltenegger, James Kasting
2008-04-08T10:23:27Z
置信度 0.70
-
Random Boolean networks (RBM) were introduced about 35 years ago as first crude models of genetic regulatory networks. RBNs are comprised of N on–off genes, connected by a randomly assigned regulatory wiring diagram where each gene has K inputs, and each gene …
crossref
Stuart Kauffman
2003-11-12T11:01:45Z
置信度 0.70
-
54 strains of viable green algae and 26 strains of viable cyanobacteria were recovered from 128 and 56 samples collected from Siberian and Antarctic permafrost, respectively, with ages from modern to a few million years old. Although species of unicellular gre…
crossref
T.A. Vishnivetskaya, E.V. Spirina, A.V. Shatilovich, L.G. Erokhina 等
2004-01-06T09:57:59Z
置信度 0.70
-
crossref
2015-10-07T09:03:49Z
置信度 0.70
-
crossref
Alan Longstaff
2018-05-02T20:37:12Z
置信度 0.70
-
Abstract The question ‘Are supernovae important sources of dust?’ is a contentious one. Observations with the Infrared Astronomical Satellite (IRAS) and the Infrared Space Observatory (ISO) only detected very small amounts of hot dust in supernova remnants. He…
crossref
H.L. Gomez, S.A. Eales, L. Dunne
2007-02-28T05:13:31Z
置信度 0.70
-
crossref
Pamela G. Conrad, Kenneth H. Nealson
2002-07-26T18:08:56Z
置信度 0.70
-
Abstract Mars has surely been scrutinised since the dawn of humankind. Its appearance every couple of years like a drop of blood in the sky led to warlike attributes in the ancient world. In the 16th century Tycho Brahe made accurate observations of the positi…
crossref
Barrie W. Jones
2008-05-29T05:26:23Z
置信度 0.70
-
crossref
Mariona Badenas-Agusti, Sara Seager
2022-07-12T09:33:30Z
置信度 0.70
-
Astrobiology harbours a number of rather diverse disciplines combining expertise in astronomy and astrophysics, biophysics and biology, chemistry and biochemistry, geophysics and geology, as well as mathematics. The need to foster advances in astrobiology are …
crossref
Anja C. Anderson, Axel Brandenburg
2005-09-08T12:47:46Z
置信度 0.70
-
Abstract The ability to discriminate biogenic from abiogenic calcium carbonate (CaCO 3 ) would be useful in the search for extant or extinct life, since CaCO 3 can be produced by both biotic and abiotic processes on Earth. Bioprecipitated CaCO 3 material was p…
crossref
B. L. Berg, J. Ronholm, D. M. Applin, P. Mann 等
2014-09-10T09:37:06Z
置信度 0.70
-
crossref
Eugene Grosch, Nicola McLoughlin
2015-10-06T11:24:09Z
置信度 0.70
-
crossref
Jeremy Bailey
2007-05-04T13:21:40Z
置信度 0.70
-
The number of confirmed exoplanets now exceeds 3000, with an additional nearly 5000 exoplanet candidates awaiting confirmation in the NASA Exoplanet Archive ( 2016 ). Nearly weekly we hear about the detection of a new exoplanet similar in mass to Earth and loc…
crossref
Dirk Schulze-Makuch, Edward Guinan
2016-11-21T14:32:45Z
置信度 0.70
-
The first large interstellar object discovered near Earth by the Pan STARRS telescope, ‘Oumuamua, showed half a dozen anomalies relative to comets or asteroids in the solar system. All natural-origin interpretations of ‘Oumuamua's anomalies contemplated object…
crossref
Avi Loeb
2022-12-07T16:44:25Z
置信度 0.70
-
crossref
Stanley G. Love
2018-09-10T15:30:11Z
置信度 0.70
-
crossref
Seth Shostak
2002-07-26T18:11:36Z
置信度 0.70
-
Abstract A few dozens of solutions to the Fermi paradox have been proposed in the past. The most relevant ones will be concisely discussed in this paper. They will be classified as follows: exceptionality solutions, annihilation solutions and communication bar…
crossref
Vojin Rakić
2024-03-07T11:07:44Z
置信度 0.70
-
Abstract Rock coatings have been observed on Mars by Mars Pathfinder, Viking and the Mars Exploration Rovers. Although rock varnish has been studied for its potential as a biosignature, other types of rock coating have been largely ignored. In Kärkevagge, Swed…
crossref
Cassandra L. Marnocha, John C. Dixon
2013-07-05T13:56:09Z
置信度 0.70
-
crossref
Jean-Pierre Bibring
2005-11-23T17:26:26Z
置信度 0.70
-
The roots of biological homochirality remain unknown despite decades of study. A commonly proposed path includes an initial small enantiomeric excess that was amplified over time, but a satisfactory source of the excess and a plausible amplification process ha…
crossref
David Ross, David Deamer
2022-02-14T16:56:05Z
置信度 0.70
-
crossref
Stephen Grasby, Penny Morris-Smith
2007-08-27T16:07:09Z
置信度 0.70
-
crossref
Lisa I. Grossman
2018-07-23T09:53:25Z
置信度 0.70
-
crossref
2022-07-04T15:15:56Z
置信度 0.70
-
crossref
Fred C. Adams, David N. Spergel
2005-08-03T12:59:46Z
置信度 0.70
-
crossref
Gernot Groemer
2020-11-12T11:22:39Z
置信度 0.70
-
The possibility of biological transfer between planetary bodies is seldom factored into life detection strategies, although the actuality of such an event would have profound implications for how we interpret potential biosignatures found on other worlds. This…
crossref
Alfonso F. Davila
2021-04-13T17:51:52Z
置信度 0.70
-
Astrobiology missions to ocean worlds in our solar system must overcome both scientific and technological challenges due to extreme temperature and radiation conditions, long communication times, and limited bandwidth. While such tools could not replace ground…
pubmed
Bethany P. Theiling, Luoth Chou, Victoria Da Poian, Melissa Battler 等
2022 Aug
置信度 0.82
-
In October of 2005, the European Space Agency (ESA) and Alcatel Alenia Spazio released a “call to academia for innovative concepts and technologies for lunar exploration.” In recent years, interest in lunar exploration has increased in numerous space programs …
crossref
Aaron Gronstal, Charles S. Cockell, Maria Antonietta Perino, Tobias Bittner 等
2007-10-27T09:12:52Z
置信度 0.70
-
Abstract Subglacial ecosystems have recently become of interest within the astrobiological community, as they represent a potentially habitable location in otherwise uninhabitable environments. We used data from Blood Falls, particularly the periodic discharge…
crossref
Thomson Mason Fisher, Dirk Schulze-Makuch
2013-05-29T12:02:36Z
置信度 0.70
-
crossref
Frédéric Foucher
2018-10-01T12:37:03Z
置信度 0.70
-
Abstract The last few million years on planet Earth have witnessed two remarkable phases of hominid development, starting with a phase of biological evolution characterized by rather rapid increase of the size of the brain. This has been followed by a phase of…
crossref
Brandon Carter
2011-09-09T17:49:33Z
置信度 0.70
-
crossref
David Dunér
2018-10-01T12:37:03Z
置信度 0.70
-
Abstract The concept of exoplanetary habitability is evolving. The driving force is a desire to define the biological potential of planets and identify which can host complex and possibly intelligent life. To assess this in a meaningful manner, climate models …
crossref
David S. Stevenson
2019-07-19T02:50:58Z
置信度 0.70
-
Terrestrial moons with masses >0.1 M ⊕ possibly exist around extrasolar giant planets, and here we consider the energetics of how they might form. Binary-exchange capture can occur if a binary-terrestrial object (BTO) is tidally disrupted during a close enc…
crossref
Darren M. Williams
2013-03-28T11:58:43Z
置信度 0.70
-
crossref
Manasvi Lingam, Abraham Loeb
2018-07-16T11:36:37Z
置信度 0.70
-
crossref
David Deamer
2012-07-14T00:59:58Z
置信度 0.70
-
crossref
Muriel Gargaud, Bernard Barbier, Hervé Martin, Jacques Reisse
2006-08-01T15:56:52Z
置信度 0.70
-
crossref
Nick Hoffman
2003-02-19T19:35:33Z
置信度 0.70
-
Abstract We proffer a contemporary solution to the so-called Fermi Paradox, which is concerned with conflict between Copernicanism and the apparent paucity of evidence for intelligent alien civilizations. In particular, we argue that every community of organis…
crossref
Joshua Cooper
2013-01-16T14:15:47Z
置信度 0.70
-
crossref
Roberto Aretxaga
2011-05-04T01:51:07Z
置信度 0.70
-
crossref
Benton C. Clark
2002-07-26T18:11:36Z
置信度 0.70
-
crossref
2020-12-15T16:44:52Z
置信度 0.70
-
Abstract If human population growth is not controlled, natural areas must be sacrificed. An alternative is to create more habitat, terraforming Mars. However, this requires establishment of essential, ecosystem services on a planet currently unamenable to Terr…
crossref
Paul L. Smith
2022-11-23T21:57:06Z
置信度 0.70
-
crossref
Heather Graham, Alison Murray
2021-05-27T11:39:47Z
置信度 0.70
-
Abstract This paper investigates the possible use of space probes to explore the Milky Way, as a means both of finding life elsewhere in the Galaxy and as finding an answer to the Fermi paradox. Exploration of the Galaxy is simulated by first examining how lon…
crossref
R. Bjørk
2007-04-20T08:54:40Z
置信度 0.70
-
crossref
James Benford, Gregory Benford, Dominic Benford
2010-07-12T14:41:30Z
置信度 0.70
-
crossref
Andreas Losch
2019-04-01T04:51:35Z
置信度 0.70
-
crossref
Robert P. Bywater, Kilian Conde-Frieboes
2005-08-03T12:59:46Z
置信度 0.70
-
crossref
Charles H. Lineweaver, Tamara M. Davis
2003-09-27T00:39:52Z
置信度 0.70
-
crossref
Dirk Schulze-Makuch
2011-12-19T10:05:05Z
置信度 0.70
-
Abstract The anatomy of the human and other vertebrates has been well described since the days of Leonardo da Vinci and Vesalius. The causative origin of the configuration of the bones and of their shapes and forms has been addressed over the ensuing centuries…
crossref
Stuart Pivar
2010-08-16T08:46:14Z
置信度 0.70
-
Abstract In a recent refreshing paper, Cowie (2022, The Philosophical Quarterly) analyses the hypothesis of artificial origin of the mysterious interstellar object 1I/2017 U1 ʻOumuamua, as well as the wider question of justification of the artefactual origin e…
crossref
Milan M. Ćirković
2022-12-15T08:24:07Z
置信度 0.70
-
Abstract This introductory chapter provides an overview of the exploration of astrobiology. While new, astrobiology's recent success has been nothing short of amazing. In just the past 25 years, scientists have learned that the building blocks of life are foun…
crossref
2020-06-18T04:11:05Z
置信度 0.70
-
Exposure of living organisms to open space requires a high level of tolerance to desiccation, cold, and radiation. Among animals, only anhydrobiotic species can fulfill these requirements. The invertebrate phylum Tardigrada includes many anhydrobiotic species,…
crossref
K. Ingemar Jönsson
2007-10-27T09:12:52Z
置信度 0.70