ضيوف الحلقة
SSami JarroushSelf - TV Host, Historian
Hakeem Muata OluseyiSelf - Astrophysicist/AuthorMMitch HorowitzSelf - Historian
EEdward T. O'DonnellSelf - Historian
Paul Matt SutterSelf - Physicist/AuthorHakeem Muata OluseyiSelf - Astrophysicist/AuthorPaul Matt SutterSelf - Physicist/Author