Finding extraterrestrial organisms living on thermosynthesis

Area of Science:

• Astrobiology
• Origin of Life Studies
• Biochemistry

Background:

• Thermosynthesis is a theoretical energy mechanism for life's origin and early evolution.
• Extraterrestrial ice could harbor dormant or extinct organisms from earlier evolutionary stages.
• Thermal gradients within ice may allow for continuous energy harvesting via thermosynthesis.

Purpose of the Study:

• To explore the potential for thermosynthesis as a viable energy mechanism for life.
• To identify potential extraterrestrial habitats for thermosynthetic organisms.
• To review strategies and missions for detecting thermosynthesis.

Main Methods:

• Theoretical exploration of thermosynthesis as an energy conversion mechanism.
• Identification and analysis of potential extraterrestrial habitats (e.g., planetary ice, outer Solar System moons).
• Review of detection strategies for thermosynthetic organisms on Earth and in space.

Main Results:

• Thermosynthesis presents a plausible energy pathway for life in cold, icy environments.
• Numerous potential habitats for thermosynthesis exist throughout the Solar System.
• Strategies for detecting thermosynthesis on Earth and via robotic missions are proposed.

Conclusions:

• Thermosynthesis offers a novel perspective on the origin and evolution of life.
• The search for extraterrestrial life should consider icy environments and thermosynthetic metabolisms.
• Future exploration missions can be designed to detect evidence of thermosynthesis.