Results 111 to 120 of about 58,525 (269)
Exomoon habitability constrained by energy flux and orbital stability
, 2012 Detecting massive satellites of extrasolar planets has now become feasible, which led naturally to questions about their habitability. In a previous study we presented constraints on the habitability of moons from stellar and planetary illumination as ...
Barnes +25 more
core +1 more source
Methane on Mars and Habitability: Challenges and Responses
Astrobiology, 2018 Recent measurements of methane (CH4) by the Mars Science Laboratory (MSL) now confront us with robust data that demand interpretation. Thus far, the MSL data have revealed a baseline level of CH4 (∼0.4 parts per billion by volume [ppbv]), with seasonal ...
Y. Yung +37 more
semanticscholar +1 more source
User-friendly carbon-cycle modelling and aspects of Phanerozoic climate change
Applied Computing and GeosciencesCarbon-cycle modelling is essential for testing the main carbon sources and sinks as climate forcings, and we introduce and describe GEOCARB_NET, a graphical user interface for the geologic carbon and sulfur cycle model GEOCARBSULFvolc.
Trond H. Torsvik +3 more
doaj
Planetary Magnetic Fields and Habitability in Super Earths
Open Astronomy, 2018 This work seeks to summarize some special aspects of a type of exoplanets known as super-Earths (SE), and the direct influence of these aspects in their habitability.
Cuartas-Restrepo Pablo
doaj +1 more source
Life, 2019 We describe the design of an instrument, the OxR (for Oxygen Release), for the enzymatically specific and non-enzymatic detection and quantification of the reactive oxidant species (ROS), superoxide radicals (O2•−), and peroxides (O22−,
Christos D. Georgiou +5 more
doaj +1 more source
Ionic Strength Is a Barrier to the Habitability of Mars.
Astrobiology, 2016 UNLABELLED The thermodynamic availability of water (water activity) strictly limits microbial propagation on Earth, particularly in hypersaline environments. A considerable body of evidence indicates the existence of hypersaline surface waters throughout
M. Fox‐Powell +3 more
semanticscholar +1 more source
A Model of Habitability Within the Milky Way Galaxy
, 2011 We present a model of the Galactic Habitable Zone (GHZ), described in terms of the spatial and temporal dimensions of the Galaxy that may favour the development of complex life.
Binney J. +10 more
core +1 more source
Hydrogen Bonds and Life in the Universe
Life, 2018 The scientific community is allocating more and more resources to space missions and astronomical observations dedicated to the search for life beyond Earth.
Giovanni Vladilo, Ali Hassanali
doaj +1 more source