Research Finds Cosmic Rays Could Support Life Underground

New research suggests cosmic rays could support life in cold, dark environments.

Cosmic Rays May Enable Life Below Mars and Icy Moons

Researchers from NYU Abu Dhabi have revealed that cosmic rays might foster microbial life deep underground on Mars and other celestial bodies like Europa and Enceladus. They focus on a process called radiolysis, where high-energy cosmic rays break apart water molecules, releasing energy that could sustain life. By using computer simulations, the team estimates potential energy production from radiolysis on these bodies, pointing to Enceladus as the most promising candidate for life support, followed by Mars and Europa. The study introduces the Radiolytic Habitable Zone, shifting the focus from surface conditions to underground environments that can be energized by cosmic radiation.

The findings represent a significant shift in our understanding of astrobiology. Instead of limiting the search for life to planets that are warm and sunlit, scientists can now explore cold, dark regions where water exists underground. This shift opens up vast new possibilities for astrobiological research, particularly on Mars, which may still host life despite its harsh surface conditions. The innovative concept of the Radiolytic Habitable Zone emphasizes that life's potential is not confined to typically habitable areas around stars, expanding the scope of where scientists might search for extraterrestrial life.

Highlights

These findings could significantly reshape our search for extraterrestrial life.