In its first six years of operations, the Fermi Gamma-ray Space
Telescope has revolutionized our view of the gamma-ray Universe. The
Large Area Telescope (LAT), the main instrument onboard Fermi, has
discovered more than two thousand new GeV sources and unveiled new
classes of gamma-ray emitters. Being a quite versatile instrument, the
LAT has been also used to detect also charged particles (e.g.
electrons and positrons), thus contributing to a better understanding
of cosmic ray physics. We will report on the status of the Fermi
observatory and highlight the most recent science results.