I am an Astrophysicist with strong interests in astro-particle physics and cosmology. My interests lie in the evolution of super-massive black holes and galaxies, the generation of truly diffuse backgrounds (from infrared to gamma rays), high-energy transients and high-energy sources in general. Recently I turned my attention to the evolution of the extragalactic background light and the role of the first stars during the epoch of re-ionization. I work with a number of instruments and telescopes both from the ground and in space, but my all-time favorites are the NASA missions Fermi, Swift, and NuSTAR.