Quest for extraterrestrial life [PDF]
Nature, 2008 In The Living Cosmos, Chris Impey outlines current thinking on how and where we should look for signs of extraterrestrial life. In its 50-year history the science of astrobiology — or exobiology — has made great strides, fuelled by a series of successful Solar System probes.
B. M. Jakosky
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Functional Properties of Amino Acid Side Chains as Biomarkers of Extraterrestrial Life. [PDF]
Astrobiology, 2018 The present study proposes to search our solar system (Mars, Enceladus, Europa) for patterns of organic molecules that are universally associated with biological functions and structures. The functions are primarily catalytic because life could only have
Georgiou CD.
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Expecting the unexpected in the search for extraterrestrial life [PDF]
International Journal of Astrobiology, 2020 AbstractOn p. 10 of the 2018 National Academies Exoplanet Science Strategy document (NASEM 2018), ‘Expect the unexpected’ is described as a general principle of the exoplanet field. But for the next 150 pages, this principle is apparently forgotten, as strategy decisions are repeatedly put forward based on our expectations.
P. Vickers
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Inhabited or Uninhabited? Pitfalls in the Interpretation of Possible Chemical Signatures of Extraterrestrial Life. [PDF]
Front Microbiol, 2017 The “Rare Earth” hypothesis—put forward by Ward and Brownlee in their 2000 book of the same title—states that prokaryote-type organisms may be common in the universe but animals and higher plants are exceedingly rare.
Fox S, Strasdeit H.
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Why we are made of proteins and nucleic acids: Structural biology views on extraterrestrial life. [PDF]
Biophys Physicobiol, 2023 Tagami S.
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The HOMO-LUMO Gap as Discriminator of Biotic from Abiotic Chemistries [PDF]
LifeLow-molecular-mass organic chemicals are widely discussed as potential indicators of life in extraterrestrial habitats. However, demarcation lines between biotic chemicals and abiotic chemicals have been difficult to define.
Roman Abrosimov, Bernd Moosmann
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Relative Likelihood of Success in the Search for Primitive versus Intelligent Extraterrestrial Life [PDF]
Astrobiology, 2018 We estimate the relative likelihood of success in the searches for primitive versus intelligent life on other planets. Taking into account the larger search volume for detectable artificial electromagnetic signals, we conclude that both searches should ...
Manasvi Lingam, Abraham Loeb
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Resilience of Chlorella vulgaris to Simulated Atmospheric Gas Compositions of Mars, Jupiter, and Titan [PDF]
LifeThis study investigates the resilience of the unicellular green microalga Chlorella vulgaris to extreme atmospheric conditions simulating those of Mars, Jupiter, and Titan.
Ariela Likai +2 more
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Marine Science Can Contribute to the Search for Extra-Terrestrial Life [PDF]
LifeLife on our planet likely evolved in the ocean, and thus exo-oceans are key habitats to search for extraterrestrial life. We conducted a data-driven bibliographic survey on the astrobiology literature to identify emerging research trends with marine ...
Jacopo Aguzzi +14 more
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Open questions on carbonaceous matter in meteorites [PDF]
Communications ChemistryExtraterrestrial carbon gives insights into the origin of life and processes that took place billions of years ago in our solar system. Here, the authors provide an overview of what is known and of unanswered questions with a meteoritical focus.
Oliver Christ +2 more
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