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Updated: Jul 2, 2025
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Prebiotic Astrochemistry from Astronomical Observations and Laboratory Spectroscopy
1Department of Chemistry and Biochemistry, Department of Astronomy, and Steward Observatory, University of Arizona, Tucson, Arizona, USA;
Annual Review of Physical Chemistry
|February 21, 2024
Summary
Astrochemical processes in interstellar space create organic molecules, including those containing phosphorus and carbon fullerenes. This interstellar synthesis may have laid the groundwork for life
Area of Science:
- Astrochemistry
- Astrobiology
- Organic Chemistry
Background:
- Over 200 gas-phase compounds identified in interstellar space.
- Laboratory spectroscopy is crucial for identifying molecules in astronomical observations.
- Interstellar clouds are sites of star and solar system formation.
Purpose of the Study:
- To explore the role of nonterrestrial synthesis in the origin of life.
- To highlight the significance of interstellar organic molecules.
- To investigate the presence and implications of specific molecules like phosphorus compounds and fullerenes.
Main Methods:
- Astronomical observations.
- Laboratory spectroscopy for molecular identification.
- Analysis of molecular composition in interstellar clouds.
Main Results:
- Identification of over 200 gas-phase compounds, including organic molecules (e.g., NH2COCH3, CH3OCH3, CH3COOCH3, CH2(OH)CHO).
- Detection of carbon in fullerenes (C60, C70) preserving carbon-carbon bonds.
- Discovery of phosphorus-bearing molecules (PO, PN) in molecular clouds.
Conclusions:
- Interstellar chemistry produces a diverse range of organic molecules.
- Fullerenes can transport carbon-based structures from circumstellar environments.
- The presence of interstellar organic molecules and their link to planetary bodies suggest a prebiotic foundation for life.
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