Results 101 to 110 of about 32,223 (288)
A Stochastic Process Approach of the Drake Equation Parameters
, 2011 The number N of detectable (i.e. communicating) extraterrestrial civilizations in the Milky Way galaxy is usually done by using the Drake equation. This equation was established in 1961 by Frank Drake and was the first step to quantifying the SETI field.
Annis +13 more
core +3 more sources
A Microphysics Model of Multicomponent Venus' Clouds With a High‐Accuracy Condensation Scheme
Earth and Space Science, Volume 12, Issue 6, June 2025.Abstract Accurate modeling of the Venusian cloud structure remains challenging due to its complex microphysical properties. Condensation primarily determines the cloud particle size distribution within the various cloud layers. However, existing Venus microphysics models mainly use a full‐stationary bin scheme, which may be prone to numerical diffusion
H. Karyu +8 more
wiley +1 more source
Natural H2 and Sulfate Production via Radiolysis in Low Porosity and Permeability Crystalline Rocks
Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 6, June 2025.Abstract Natural hydrogen (H2) is a candidate low‐carbon energy source for society and sustains microbial ecosystems when coupled with oxidants (e.g., sulfate). In crystalline rock settings, water‐rock interactions, including radiolysis, generate both H2 and sulfate, but quantifying their production rates remains challenging when porosity and ...
Peter M. Higgins +3 more
wiley +1 more source
Methods in Ecology and Evolution, Volume 16, Issue 6, Page 1160-1172, June 2025.Abstract Microinvertebrates in harsh environments often occupy the highest trophic levels and directly influence the turnover of macroelements. However, the investigation of their body elemental composition is complicated due to their low dry weight or sample size hindering the application of established methodological approaches.
Tereza Novotná Jaroměřská +8 more
wiley +1 more source
Teaching Astrobiology Online [PDF]
Symposium - International Astronomical Union, 2004 As part of Swinburne Astronomy Online (SAO), we run an online short course entitled Searching for Extrasolar Planets and Extraterrestrial Life. The main aim of the short course is to act as a “feeder” into our graduate programs and allow students to trial online education while exploring one of the new hot topics of astronomy – astrobiology.I will ...
openaire +1 more source
, 2010 Following on from ideas presented in a recent paper by Schneider et al. (2010) on "The Far Future of Exoplanet Direct Characterization", I argue that they have exaggerated the technical obstacles to performing such 'direct characterization' by means of ...
Bond A. +10 more
core +1 more source
The Evolution of Titan's Cold South Polar Cloud
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract Early during Titan's southern fall, images captured by Cassini's Imaging Science Subsystem revealed the formation of a large cloud above Titan's south pole. Subsequent analysis of Cassini data revealed the cloud contained HCN ice, but the cloud's evolution has not been examined.
Lavender Elle Hanson +4 more
wiley +1 more source
Astrobiology: An Introduction [PDF]
American Journal of Physics, 2016 This article reviews Astrobiology: An Introduction. by Alan Longstaff 422 pp. , 2015. Price: $89.95 (hardback). ISBN 978-1-4398-7576-6.
openaire +2 more sources
Physical Review Physics Education ResearchMassive open online courses (MOOCs) experienced a resurgence in popularity due to the COVID-19 pandemic. In this work, we studied participants in an astrobiology MOOC offered on Coursera since April 2019.
Skylar Grayson +4 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