Origin of life-forming volatile elements in the inner Solar System

Area of Science:

• Planetary Science
• Astrochemistry
• Geochemistry

Background:

• Volatile elements (hydrogen, carbon, nitrogen, oxygen) are fundamental for life.
• Their origin and distribution in terrestrial planets are key to understanding habitability.
• Existing models for volatile delivery remain incomplete.

Purpose of the Study:

• To investigate the distribution of volatile elements in the early Solar System.
• To understand how these elements were incorporated into planetary bodies.
• To explore the link between volatile sources, accretion, and planetary habitability.

Main Methods:

• Review of current astrophysical and geological models.
• Analysis of isotopic signatures in meteorites and planetary samples.
• Comparative planetology of terrestrial planets.

Main Results:

• Volatile elements were heterogeneously distributed across the early Solar System.
• Planetary building blocks accreted volatiles from diverse sources.
• Evidence suggests distinct volatile reservoirs influenced different planets.

Conclusions:

• The heterogeneous sourcing of volatiles is critical for planet formation.
• Accretion timing of volatiles significantly impacts a planet's potential habitability.
• Further research into early Solar System reservoirs is needed to refine habitability models.