Results 91 to 100 of about 34,064 (228)
Can Spacecraft‐Borne Contamination Compromise Our Understanding of Lunar Ice Chemistry?
Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.Abstract Recent detections of water ice in the permanently shadowed regions (PSRs) at the lunar poles have reignited scientific and commercial interest in the exploration of Earth's closest neighbor. The frigid temperatures in PSRs operate as cold traps for volatiles and may represent large reservoirs of materials, including water ice and prebiotic ...
Francisca S. Paiva, Silvio Sinibaldi
wiley +1 more source
Frontiers in Microbiology, 2018 Iron (Fe) redox-based metabolisms likely supported life on early Earth and may support life on other Fe-rich rocky planets such as Mars. Modern systems that support active Fe redox cycling such as Chocolate Pots (CP) hot springs provide insight into how ...
Nathaniel W. Fortney +5 more
doaj +1 more source
Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets
, 2016 The next generation of ground and space-based telescopes will image habitable planets around nearby stars. A growing literature describes how to characterize such planets with spectroscopy, but less consideration has been given to the usefulness of ...
Arney, Giada +6 more
core +1 more source
Physicochemical Constraints on the Abiotic Polymerization of Nucleotides Into RNA
Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 11, November 2025.Abstract One of the key steps in the origin of life is the polymerization of nucleotides into nucleic acids like RNA. We have quantified the energetic impact of temperature, pressure, and composition on the polymerization of nucleotides into RNA using the Gibbs function. These Gibbs energies have been used to calculate the probability that a nucleotide
D. E. LaRowe, J. M. Dick
wiley +1 more source
iScienceSummary: 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 +12 more
doaj +1 more source
Microbialite Niches Across the Archean and Paleoproterozoic
Geophysical Research Letters, Volume 52, Issue 20, 28 October 2025.Abstract Changes in microbialite abundance during the Archean and Paleoproterozoic have been attributed to a variety of environmental and biological factors, yet past work looking at large‐scale patterns of microbialite abundance generally assumes shallow marine deposition rather than incorporating specific settings.
C. M. Howard, N. D. Sheldon
wiley +1 more source
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
Dark blue-green: Cave-inhabiting cyanobacteria as a model for astrobiology [PDF]
, 2023 Patrick Jung +7 more
openalex +1 more source
Life in the near space and implications for astrobiology
Chinese Science Bulletin, 2020 Near space is a region that lies between 20 and 100 km above sea level, which includes the major region of the stratosphere, the mesosphere and the lower thermosphere.
Wei Lin
semanticscholar +1 more source
Biomimicry of Magnetotactic Bacteria Via Self‐Organized Soft Matter Dispersions
Advanced Physics Research, Volume 4, Issue 10, October 2025.Self‐assembled ferrofluid droplet chain coated with a lipid bilayer, mimicking the structural, functional and dynamic properties of magnetotactic bacteria. The controlled magnetic responsiveness suggests applicational potential of these soft matter systems in biosensing, targeted delivery, and magnetic‐responsive materials.
Varun Chandrasekar +5 more
wiley +1 more source