Bioorganic compound survivability against γ radiation on Mars&5 cm below with a dose corresponding to 500000 years were studied: Organic compound lost due to gamma radiation is about 90% for samples on the surface, while only about 10% for samples located 5 cm below the surface: Results demonstrate the organic accumulation instead of organic lost.


Gözen Ertem, SETI Institute Mountain View, Mountain View, CA, United States