-
crossref
Kenneth Stedman, Baruch Blumberg
2008-04-08T10:23:27Z
置信度 0.70
-
crossref
Everett L. Shock, Melanie E. Holland
2007-12-28T10:02:31Z
置信度 0.70
-
crossref
Dawn Skjei Cooley
2018-12-19T01:54:21Z
置信度 0.70
-
crossref
Ivan Almar
2018-03-15T11:37:06Z
置信度 0.70
-
crossref
Vera M. Kolb, Benton C. Clark
2023-03-24T12:05:16Z
置信度 0.70
-
crossref
Antonio Lazcano, Eduardo Martin, Thorsteinn Thorsteinsson
2005-10-14T11:46:30Z
置信度 0.70
-
crossref
Purificación López-García
2005-11-23T12:26:26Z
置信度 0.70
-
crossref
Penny A. Morris, Susan J. Wentworth
2004-12-20T08:03:43Z
置信度 0.70
-
crossref
Andrew H. Knoll
2011-02-07T03:21:50Z
置信度 0.70
-
crossref
N. Chandra Wickramasinghe, Edward J. Steele, Daryl. H. Wallis, Robert Temple 等
2018-01-04T01:21:19Z
置信度 0.70
-
crossref
George E. Fox
2013-12-16T14:06:32Z
置信度 0.70
-
crossref
Attila Grandpierre
2008-11-06T19:06:41Z
置信度 0.70
-
Panspermia is the idea that life migrates naturally through space. Although an old idea, there has been much recent theoretical and experimental work developing the idea in recent years. In this review, this progress is considered and placed in context. Ideas …
crossref
M.J. Burchell
2004-12-24T11:55:42Z
置信度 0.70
-
crossref
David Moreira, Purificación López-García
2007-01-04T19:22:11Z
置信度 0.70
-
crossref
Kenneth Stedman, Baruch S. Blumberg
2005-08-03T12:59:46Z
置信度 0.70
-
crossref
2005-04-06T10:55:35Z
置信度 0.70
-
crossref
Guest Editor: Gernot Groemer
2014-05-13T15:41:08Z
置信度 0.70
-
crossref
Marc Chaussidon
2007-01-04T14:22:11Z
置信度 0.70
-
crossref
2003-02-19T19:35:33Z
置信度 0.70
-
Abstract The steady advances in computer performance and in programming raise the concern that the ability of computers would overtake that of the human brain, an occurrence termed ‘the Singularity’. While comparing the size of the human brain and the advance …
crossref
Joe Gale, Amri Wandel, Hugh Hill
2019-12-03T11:45:36Z
置信度 0.70
-
crossref
2003-02-05T17:40:04Z
置信度 0.70
-
crossref
Penny A. Morris
2008-10-10T06:35:02Z
置信度 0.70
-
Abstract The authors use the mathematical tool of Maccone's lognormal distribution to further factor the Drake equation, which calculates the number of advanced civilizations in the galaxy, from the seven original levels of the Drake equation to 49 levels of o…
crossref
E. Mieli, A. M. F. Valli, C. Maccone
2023-06-14T07:17:07Z
置信度 0.70
-
crossref
Michael Perryman
2012-09-26T17:00:24Z
置信度 0.70
-
crossref
Penny A. Morris-Smith, Stephen Grasby
2008-10-10T06:35:02Z
置信度 0.70
-
W dniach 3-4 czerwca 2022 roku w Höör (Szwecja) odbyła się międzynarodowa konferencja naukowa, poświęcona problematyce astrobiologii: Astrobiology and Society. Third Conference on History and Philosophy of Astrobiology, zorganizowana przez European Astrobiolog…
crossref
Adam Świeżyński
2023-03-01T14:20:27Z
置信度 0.70
-
crossref
Helga Stan-Lotter
2004-10-22T11:36:52Z
置信度 0.70
-
This article describes a multifaceted approach to delivering results from current research in astrobiology to visitors at Pacific Science Center, along with the evaluated results of the impact of the work. Content was delivered by (1) training scientists to co…
crossref
Erika M. Harnett, Diana Johns, Jennifer Gardner, Kathleen Finneran 等
2019-05-02T13:51:54Z
置信度 0.70
-
crossref
Stephen J. Sowerby, George B. Petersen
2003-02-19T19:35:33Z
置信度 0.70
-
crossref
Radu Popa
2009-09-24T15:52:19Z
置信度 0.70
-
crossref
2006-03-21T11:16:57Z
置信度 0.70
-
crossref
Billings Linda
2021-09-22T13:14:21Z
置信度 0.70
-
crossref
Jacques Arnould
2021-09-22T13:14:21Z
置信度 0.70
-
crossref
Kevin R. Grazier
2015-12-23T16:19:50Z
置信度 0.70
-
crossref
Mary A. Voytek
2012-11-02T09:34:51Z
置信度 0.70
-
crossref
John A. Baross
2003-09-27T00:39:52Z
置信度 0.70
-
This paper investigates whether anthropic selection explains the unusually large size of our Moon. It is shown that obliquity stability of the Earth is possible across a wide range of different starting conditions for the Earth–Moon system. However, the lunar …
crossref
Dave Waltham
2004-12-20T08:03:43Z
置信度 0.70
-
crossref
Jacob Haqq-Misra
2012-10-03T09:20:39Z
置信度 0.70
-
crossref
Amri Wandel, Joseph Gale
2025-09-02T05:00:00Z
置信度 0.70
-
Abstract What is astrobiology? Which fields does it comprise and what makes an astrobiologist? Ask five scientists and you may end up with six different definitions. This issue was raised at the first symposium of the European network of Astrobiology Graduates…
crossref
Lena Noack, Cyprien Verseux, Paloma Serrano, Michaela Musilova 等
2015-07-23T03:46:11Z
置信度 0.70
-
crossref
Anthony M. Poole, Tomas Hode, Axel Brandenburg, Åke Hjalmarson 等
2006-12-08T08:54:02Z
置信度 0.70
-
crossref
2012-12-05T22:49:44Z
置信度 0.70
-
crossref
Graham Ryder
2003-05-21T20:04:06Z
置信度 0.70
-
Abstract Extremophiles are organisms adapted to grow at extreme ranges of environmental variables, such as high or low temperatures, acid or alkaline medium, high salt concentration, high pressures and so forth. Most extremophiles are micro-organisms that belo…
crossref
Rubens T. D. Duarte, Felipe Nóbrega, Cristina R. Nakayama, Vivian H. Pellizari
2012-07-11T12:56:07Z
置信度 0.70
-
crossref
Jacob D. Haqq-Misra
2007-08-27T16:07:09Z
置信度 0.70
-
crossref
Alex Johnson
2007-08-27T16:07:09Z
置信度 0.70
-
crossref
Michael Burnam-Fink, Steven J. Desch, Daniella Scalice, Hilarie Davis 等
2018-03-23T15:36:02Z
置信度 0.70
-
Abstract The ongoing search for life on other worlds and the prospects of eventual human exploration of the Moon and Mars indicate the need for new ethical guidelines to direct our actions as we search and how we respond if we discover microbial life on other …
crossref
Richard O. Randolph, Christopher P. McKay
2013-10-17T09:40:42Z
置信度 0.70
-
crossref
Pascale Ehrenfreund, Oliver Botta
2008-04-08T10:23:27Z
置信度 0.70
-
Abstract Astrobiology is a discipline that is expanding its field of investigation not only in the natural sciences, but also in the social sciences. It is for this reason that the ethical aspects are progressively emphasized leading to a point where the whole…
crossref
Octavio A. Chon-Torres
2017-04-10T07:05:43Z
置信度 0.70
-
crossref
Akihiko Yamagishi
2019-02-27T22:07:43Z
置信度 0.70
-
Conceptual frameworks are developed for evaluating the ability of different biosignatures to provide evidence for the presence of life in planned missions or observational studies. The focus is on intrinsic characteristics of biosignatures in space environment…
crossref
Andrew Pohorille, Joanna Sokolowska
2020-08-18T11:42:05Z
置信度 0.70
-
crossref
Ted Peters
2018-12-19T01:54:21Z
置信度 0.70
-
crossref
Rose Grymes
2003-09-27T00:39:52Z
置信度 0.70
-
crossref
David W. Deamer
2008-02-21T22:48:58Z
置信度 0.70
-
crossref
Tori M. Hoehler
2007-12-28T10:02:31Z
置信度 0.70
-
I propose a version of the Drake equation to include searching for alien artifacts, which may be located on the Moon, Earth Trojans, and Earth co-orbital objects. The virtue of searching for artifacts is their lingering endurance in space, long after they go d…
crossref
James Benford
2021-03-19T14:47:56Z
置信度 0.70
-
crossref
2005-11-30T10:40:50Z
置信度 0.70
-
crossref
G.E. Bebout, N.R. Banerjee, M.R.M. Izawa, K. Kobayashi 等
2017-11-06T10:19:15Z
置信度 0.70
-
crossref
Yves Ellinger, Françoise Pauzat
2007-01-04T19:22:11Z
置信度 0.70
-
crossref
2004-07-22T19:31:48Z
置信度 0.70
-
crossref
Ian A. Crawford
2010-08-24T14:42:37Z
置信度 0.70
-
crossref
Anthonie W.J. Muller
2003-12-11T17:16:30Z
置信度 0.70
-
crossref
F. Raulin-Cerceau
2006-05-06T08:59:44Z
置信度 0.70
-
Abstract Thomas Nagel in ‘The Absurd’ (Nagel 1971) mentions the future expunction of the human species as a ‘metaphor’ for our ability to see our lives from the outside, which he claims is one source of our sense of life's absurdity. I argue that the future ex…
crossref
Robert Klee
2017-02-20T02:03:08Z
置信度 0.70
-
crossref
2005-04-06T10:55:35Z
置信度 0.70
-
crossref
Robin H. D. Corbet
2003-09-27T00:39:52Z
置信度 0.70
-
crossref
Jensine Andresen
2021-09-22T13:14:21Z
置信度 0.70
-
Recent discoveries of highly porous low-density carbonaceous asteroids such as 101955 Bennu and Ryugu have motivated a re-examination of the Polonnaruwa stones which fell in central Sri Lanka on 27 December 2012 following a fireball sighting. Previous discover…
crossref
Milton Wainwright, N. Chandra Wickramasinghe
2021-05-19T13:25:50Z
置信度 0.70
-
crossref
Janet Siefert
2011-04-03T19:25:52Z
置信度 0.70
-
crossref
2003-02-05T17:40:04Z
置信度 0.70
-
crossref
Douglas Galante, Fabio Rodrigues, Ivan Glaucio Paulino Lima, Rubens T.D. Duarte, and the SPASA Organizers
2013-03-28T16:19:05Z
置信度 0.70
-
The limitations placed upon human explorers on the surface of Mars will necessitate a methodology for scientific exploration that is different from standard approaches to terrestrial fieldwork and prior crewed exploration of the Moon. In particular, the data t…
crossref
A.H. Stevens, S.E. Kobs Nawotniak, W.B. Garry, S.J. Payler 等
2019-03-06T12:39:31Z
置信度 0.70
-
crossref
Paul C. Lauterbur
2008-02-21T22:48:58Z
置信度 0.70
-
For exploring nearby stars, let us consider the challenges of a picogram- to nanogram-scale probe to land, replicate, and produce a communications module based on biominerals at the destination. A billion such probes could be launched for similar cost as a sin…
crossref
George Church
2022-12-07T16:44:25Z
置信度 0.70
-
crossref
2003-02-05T17:40:04Z
置信度 0.70
-
Planetary anthropic selection, the idea that Earth has unusual properties since, otherwise, we would not be here to observe it, is a controversial idea. This paper proposes a methodology by which to test anthropic proposals by comparison of Earth to synthetic …
crossref
Dave Waltham
2011-03-14T10:37:49Z
置信度 0.70
-
crossref
Anna Gorbushina
2003-12-11T17:16:30Z
置信度 0.70
-
crossref
2012-12-05T22:51:32Z
置信度 0.70
-
crossref
Harold Morowitz
2012-01-11T13:20:30Z
置信度 0.70
-
crossref
Reviewed by C.H. Lineweaver
2011-02-07T03:14:47Z
置信度 0.70
-
crossref
Monica M. Grady
2008-02-25T12:18:44Z
置信度 0.70
-
crossref
Ariel Anbar, Beth Orcutt
2008-04-08T10:23:27Z
置信度 0.70
-
crossref
Michael A. Meyer
2002-07-26T18:08:56Z
置信度 0.70
-
crossref
Peter L. Read
2014-07-25T10:11:29Z
置信度 0.70
-
crossref
André Brack
2018-10-01T16:37:03Z
置信度 0.70
-
crossref
Franco Ferrari, Ewa Szuszkiewicz
2009-06-11T13:50:08Z
置信度 0.70
-
crossref
Kathryn Denning, Lori Marino
2008-04-08T10:23:27Z
置信度 0.70
-
crossref
H. J. Melosh
2003-05-21T20:04:06Z
置信度 0.70
-
The ubiquity of information transmission via molecular communication between cells is comprehensively documented on Earth; this phenomenon might even have played a vital role in the origin(s) and early evolution of life. Motivated by these considerations, a si…
pubmed
Manasvi Lingam, Lingam M
2023-12-18T12:22:06Z
置信度 0.82
-
crossref
John F. Lindsay
2008-10-10T06:35:02Z
置信度 0.70
-
The mode of tectonics that governed early Earth is controversial. This makes it challenging to infer surface environments relevant to the origin of life. The majority of the literature published in the past two decades was inclined to favor the appearance of p…
pubmed
Jun Korenaga, Korenaga J
2025-03-26T13:19:44Z
置信度 0.82
-
Bacterial ferredoxins are small iron-sulfur binding proteins that function as soluble electron shuttles between redox enzymes in the cell. Their simple 2×(β-α-β) fold, central metabolic function, and ubiquity across all kingdoms of life …
pubmed
Siess JA, Nanda V
2025
置信度 0.82
-
Clay surfaces have been invoked as crucial components in the origin of life processes due to their ability to concentrate organics and abiotically catalyse (bio)polymer production. Still, the importance of the mutual nature of organo-clay interactions and the …
pubmed
Bezaly OR, Petrignani A, King HE
2025
置信度 0.82
-
Translation of symbols in one chemical language into another defined genetics. Yet, the co-linearity of codons and amino acids is so commonplace an idea that few even ask how it arose. Readout is done by two distinct sets of proteins, called aminoacyl-tRNA syn…
pubmed
Carter CW Jr, Tang GQ, Patra SK, Dieckhaus H 等
2025 May 30
置信度 0.82
-
crossref
Harold Morowitz
2011-11-07T16:07:02Z
置信度 0.70
-
crossref
2005-04-06T10:55:35Z
置信度 0.70
-
crossref
Juan Pérez-Mercader
2011-09-11T22:56:50Z
置信度 0.70
-
crossref
Marilyn Vogel, Linda Jahnke
2008-04-08T10:23:27Z
置信度 0.70
-
crossref
2012-02-08T06:25:52Z
置信度 0.70