Schubert, Peter J.2024-09-262024-09-262021Schubert P. Natural Gamma Transmutation Studies. Bulletin of the AAS. 2021;53(4). doi:10.3847/25c2cfeb.78151830https://hdl.handle.net/1805/43641Beyond Earth’s magnetosphere is a spectrum of extra-gallactic energetic photons of mysterious origin. Called the “gamma fog” this source of gamma rays provides a unique opportunity to study neutron generation (from beryllium) and the use of such neutrons to transmute elements found in the lunar crust. There are also many commercial applications.en-USAttribution 4.0 InternationalGamma fogGamma raysNeutronsLunar crustArticle