Ubiquitous equatorial accretion disc winds in black hole soft states
UHE neutrinos from Pop III stars: concept and constraints
UHE neutrinos from superconducting cosmic strings
UHECR Acceleration in Dark Matter Filaments of Cosmological Structure Formation
UHECR besides CenA: hints of galactic sources
UHECR by lightest nuclei in Nearby Universe and its parasite neutrino trace
UHECR Maps: mysteries and surprises
UHECRs from magnetic reconnection in relativistic jets
Ultra fast variability monitoring with CTA
Ultra High Energy Comic Rays in the Cosmic Microwave Background
Ultra High Energy Cosmic Ray Acceleration in Engine-driven Relativistic Supernovae
Ultra High Energy Cosmic Ray Protons: Signatures and Observations
Ultra High Energy Cosmic Ray, Neutrino, and Photon Propagation and the Multi-Messenger Approach
Ultra High Energy Cosmic Rays
Ultra High Energy Cosmic Rays Propagation and Spectrum
Ultra high energy cosmic rays: A review
Ultra High Energy Cosmic Rays: Anisotropies and Spectrum
Ultra high energy cosmic rays: subluminal and superluminal shocks
Ultra High Energy Cosmic Rays: The disappointing model
Ultra high energy photons as probes of Lorentz symmetry violations in stringy space-time foam models