Science ❯ Astrobiology

Organic Chemistry

Building Blocks of Life Molecular Composition Carbon-Based Molecules Titan's Ocean Prebiotic Chemistry Methane Cycle Irradiation Effects Extraterrestrial Life Organic Matter Molecular Biology Life Detection Organic Molecules Chemical Evolution Life Ingredients Carbon Compounds Interstellar Matter Life Origins RNA Proteins Atmospheric Reactions Complex Organics Biomolecules

Webb Detects Methane on Interstellar Comet 3I/ATLAS

The measurement reveals a carbon-dioxide–heavy chemistry that suggests the comet formed in an environment unlike most Solar System comets.

OSIRIS-REx Sample Shows Bennu’s Water Flowed in Channels, Preserving Fragile Organics

Cassini Reanalysis Finds Complex Organics From Enceladus’s Ocean in Fresh Plume Grains

Cassini Reanalysis Finds Complex Organics in Fresh Enceladus Plume Grains

OSIRIS-REx Samples Show Bennu’s Presolar Stardust, Interstellar Organics, and Faster-Than-Expected Weathering