Results 121 to 130 of about 27,747 (265)
Frontiers in Microbiology, 2017 Outer space, the final frontier, is a hostile and unforgiving place for any form of life as we know it. The unique environment of space allows for a close simulation of Mars surface conditions that cannot be simulated as accurately on the Earth. For this
Stefan Leuko +7 more
doaj +1 more source
Frontiers in Microbiology, 2020 Microorganisms living in sub-zero environments can benefit from the presence of dissolved salts, as they significantly increase the temperature range of liquid water by lowering the freezing point.
Annemiek C. Waajen +7 more
doaj +1 more source
A Potential Mushy Source for the Geysers of Enceladus and Other Icy Satellites
Geophysical Research Letters, Volume 52, Issue 3, 16 February 2025.Abstract Enceladus is a target for astrobiology due to the H2O ${\mathrm{H}}_{2}\mathrm{O}$ plume ejecta measured by the Cassini spacecraft and the inferred subsurface ocean that could be the source of the geysers. Here we explore an alternative where shear heating along tiger stripe fractures produces partial melting in the ice shell and interstitial ...
Colin R. Meyer +8 more
wiley +1 more source
Galactic Punctuated Equilibrium: How to Undermine Carter's Anthropic Argument in Astrobiology
, 2009 We investigate a new strategy which can defeat the (in)famous Carter's "anthropic" argument against extraterrestrial life and intelligence. In contrast to those already considered by Wilson, Livio, and others, the present approach is based on relaxing ...
Annis J. +6 more
core +1 more source
Astronomische Nachrichten, Volume 346, Issue 2, February 2025.ABSTRACT In our search for life beyond the Solar System, certain planetary bodies may be more conducive to life than Earth. However, the observability of these “superhabitable” (SH) planets in the habitable zones around K dwarf stars has not been fully modeled. This study addresses this gap by modeling the atmospheres of SH exoplanets.
Iva Vilović +3 more
wiley +1 more source
Life-Detection Technologies for the Next Two Decades
, 2018 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 ...
Bodas, Dhananjay +22 more
core
Too Early? On the Apparent Conflict of Astrobiology and Cosmology [PDF]
Biol.Phil.21:369-379,2006, 2005 An interesting consequence of the modern cosmological paradigm is the spatial infinity of the universe. When coupled with naturalistic understanding of the origin of life and intelligence, which follows the basic tenets of astrobiology, and with some fairly incontroversial assumptions in the theory of observation selection effects, this infinity leads,
arxiv
Light and Life: Exotic Photosynthesis in Binary Star Systems
, 2011 The potential for hosting photosynthetic life on Earth-like planets within binary/multiple stellar systems was evaluated by modelling the levels of photosynthetically active radiation (PAR) such planets receive.
Briot D. +18 more
core +2 more sources
, 2009 (ABRIDGED) In previous work, two platforms have been developed for testing computer-vision algorithms for robotic planetary exploration (McGuire et al. 2004b,2005; Bartolo et al. 2007).
A. Bonnici +21 more
core +1 more source
The Astrobiology of Alien Worlds: Known and Unknown Forms of Life
, 2020 Most definitions of life assume that, at a minimum, life is a physical form of matter distinct from its environment at a lower state of entropy than its surroundings, using energy from the environment for internal maintenance and activity, and capable of
L. Irwin, D. Schulze‐Makuch
semanticscholar +1 more source