Any viable theory of the formation and evolution of galaxies should be able to broadly account for the emergent properties of the galaxy population, and their...

The mass and structural assembly of galaxies is still a matter of intense debate. Current theoretical models predict the existence of a linear relationship...

We examine the latest results concerning the evolution in the structures of galaxies from the local universe up to z ~ 6. We present results from the COSMOS...

The search for detection of gamma-rays in the very-high-energy range (VHE, >100GeV) from distant AGNs by Imaging Atmospheric Cherenkov Telescopes (IACTs) gets...

In the last years star-forming regions and massive protostars have been suggested to be gamma-ray emitters. Isolated massive protostars present powerful...

High energy gamma-ray astronomy probes the most extreme and violent environments in the Universe. This allows to study, among others, the role of relativistic...

The small source class of gamma-ray binaries consists at present of six known objects with different orbital periods ranging from days up to several years. One...

Long Gamma-Ray Bursts are flashes of high-energy radiation and are linked to the death of massive stars. I will first summarize the main aspects of GRB...