Discovery of very high energy gamma-ray emission from the BL Lac object PKS 0301-243 with H.E.S.S The active galactic nucleus PKS 0301-243 (z = 0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV 100 GeV) by ... H.E.S.S. Collabora...