A group of ocean bacteria long considered perfectly adapted to life in nutrient-poor waters may be more vulnerable to environmental change than scientists realized.
biophysics
Stardust Study Resets How Life’s Atoms Spread Through Space
Starlight and stardust are not enough to drive the powerful winds of giant stars, transporting the building blocks of life through our galaxy. That’s the conclusion of a new study […]
Cytoplasmic Fluidity And The Cold Life: Proteome Stability Is Decoupled From Viability In Psychrophiles
Protein diffusion, critical for cellular metabolism, occurs in the highly crowded cytoplasm. Understanding how this dynamics changes when organisms are adapted to different thermal niches is a fundamental challenge in […]
Isotopomer-Specific Carbon Isotope Ratio of Complex Organic Molecules in Star-Forming Cores
Recent high-resolution and sensitivity ALMA observations have unveiled the carbon isotope ratios (12C/13C) of Complex Organic Molecules (COMs) in a low-mass protostellar source.
Chemists Find Clues To The Origins Of Buckyballs In Space
Far from Earth, in the vast expanses of space between stars, exists a treasure trove of carbon. There, in what scientists call the “interstellar medium,” you can find a wide […]
PAH Spectral Diversity in NGC 7027 and the Evolution of Aromatic Carriers
Polycyclic Aromatic Hydrocarbons (PAHs) constitute a significant fraction of the Universe’s carbon budget, playing a key role in the cosmic carbon cycle and dominating the mid-infrared spectra of astrophysical environments […]
The Abiotic Background as a Central Component of a Sample Safety Assessment Protocol for Sample Return
Martian rock and regolith samples are being collected and cached by NASA’s Perseverance rover, with the goal of returning them to Earth as soon as the mid-2030s.
Stable Isotope Abundance Patterns as Potential Biosignatures
The abundance and distribution of stable isotopes of an element in a substance can provide insights regarding the source, synthesis, and environmental history of that substance.
A Hybrid Iron/Green-Rust-Urea Model for Prebiotic Chemistry: A Synthesis of Testable Pathways for Planetary Astrobiology
We propose a quantitative, testable framework for abiogenesis that links submarine alkaline vents, which supply H2, ΔpH, and Fe/Fe–S catalysis, to subaerial hot-spring fields that provide wet–dry concentration and UV-driven […]
The Origin of Biomolecular Homochirality
The origin of homochirality in biomolecules is a central problem in the study of the origin of life and is fundamental to understanding the nature of life itself.
