galactic cosmic ray bombardment

Cosmic Rays Alter Chemistry of Lunar Ice

Space scientists from UNH, working as part of a multi-institutional team, have quantified levels of radiation on the moon’s surface from galactic cosmic ray (GCR) bombardment that over time causes chemical changes in water ice and can create complex carbon chains similar to those that help form the foundations of biological structures. In addition, the radiation process causes the lunar soil, or regolith, to darken over time, which is important in understanding the geologic history of the moon.

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