Results 81 to 90 of about 27,462 (193)

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, Volume 43, Issue 3, Page 1212-1228, May/June 2026.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Motivation, demographics, and engagement during COVID-19 in an astrobiology massive open online course

Physical Review Physics Education Research
Massive 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, Molly N. Simon, Sanlyn Buxner, Matthew Wenger, Chris Impey   +4 more
doaj   +1 more source

Polysphaeroides filiformis, a proterozoic cyanobacterial microfossil and implications for cyanobacteria evolution

iScience
Summary: Deciphering the fossil record of cyanobacteria is crucial to understand their role in the chemical and biological evolution of the early Earth.
Catherine F. Demoulin, Marie Catherine Sforna, Yannick J. Lara, Yohan Cornet, Andrea Somogyi, Kadda Medjoubi, Daniel Grolimund, Dario Ferreira Sanchez, Remi Tucoulou Tachoueres, Ahmed Addad, Alexandre Fadel, Philippe Compère, Emmanuelle J. Javaux   +12 more
doaj   +1 more source

Astrobiology [PDF]

Nature, 2001
  +5 more sources

Perchlorates on Mars enhance the bacteriocidal effects of UV light

Scientific Reports, 2017
Perchlorates have been identified on the surface of Mars. This has prompted speculation of what their influence would be on habitability. We show that when irradiated with a simulated Martian UV flux, perchlorates become bacteriocidal.
Jennifer Wadsworth, Charles S. Cockell
doaj   +1 more source

The microbial ferrous wheel in a neutral pH groundwater seep

Frontiers in Microbiology, 2012
Evidence for microbial Fe redox cycling was documented in a circumneutral pH groundwater seep near Bloomington, Indiana. Geochemical and microbiological analyses were conducted at two sites, a semi-consolidated microbial mat and a floating puffball ...
Eric eRoden, Joyce M McBeth, Marco eBlothe, Elizabeth Maria Percak-Dennett, Emily J Fleming, Rebecca R Holyoke, George W. Luther, David eEmerson   +7 more
doaj   +1 more source

Characterizing Habitable Exo-Moons

, 2010
We discuss the possibility of screening the atmosphere of exomoons for habitability. We concentrate on Earth-like satellites of extrasolar giant planets (EGP) which orbit in the Habitable Zone of their host stars. The detectability of exomoons for EGP in
Barnes, Borucki, Brack, Cameron, Cassidy, COESA, Cox, Endl, Han, Henon, Holman, Kaltenegger, Kaltenegger, Kaltenegger, Kaltenegger, Kaltenegger, Kaltenegger, Lewis, Mohanty, Scharf, Woolf, Yung   +21 more
core   +1 more source

The minimum energy required to build a cell

Scientific Reports
Understanding the energy requirements for cell synthesis accurately and comprehensively has been a longstanding challenge. We introduce a computational model that estimates the minimum energy necessary to build any cell from its constituent parts.
Edwin Ortega-Arzola, Peter M. Higgins, Charles S. Cockell   +2 more
doaj   +1 more source

The habitability of the Universe through 13 billion years of cosmic time [PDF]

, 2016
The field of astrobiology has made tremendous progress in modelling galactic-scale habitable zones which offer a stable environment for life to form and evolve in complexity.
Cockell, Charles, Dayal, Pratika, Ward, Martin   +2 more
core   +1 more source

Cognitive Astrobiology

Proceedings of the International Astronomical Union
Abstract Traditionally the search for extraterrestrial intelligence (SETI) has been mostly a kind of engineering task, based on two assumptions: the existence of other technological culture somewhere in our Galaxy and that this culture is using radiotechnology that can be detected with our receivers.
openaire   +2 more sources