Plasma Cos­mol­ogy con­tains inter­views with top pro­fes­sors and gov­ern­ment sci­en­tists, exam­in­ing the prob­lems with the pre­vail­ing dark mat­ter par­a­digm. Dr. Per­att describes what the gov­ern­ment learned and clas­si­fied dur­ing secret nuclear tests underground.