The announcement by the IceCube Collaboration of the observation of 28 cosmic neutrino
candidates has been greeted with a great deal of justified excitement. The data reported so …

In this report we review the important progress made in recent years towards understanding
the experimental data on ultra-high-energy (E≳ 1 0 9 GeV) cosmic rays. We begin with a …

Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies
observed in nature. Clues to their origin come from studying the distribution of their arrival …

Abstract The Pierre Auger Observatory, located on a vast, high plain in western Argentina, is
the world׳ s largest cosmic ray observatory. The objectives of the Observatory are to probe …

The Pierre Auger Observatory has begun a major Upgrade of its already impressive
capabilities, with an emphasis on improved mass composition determination using the …

The sharp change in slope of the ultrahigh energy cosmic ray (UHECR) spectrum around 1
0 18.6 eV (the ankle), combined with evidence of a light but extragalactic component near …

Cosmic-Ray Anisotropies in Right Ascension Measured by the Pierre Auger Observatory -
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In the last few decades, a number of experiments have provided long-term, statistically
significant evidence of a faint sidereal anisotropy in the cosmic-ray arrival direction …

We review some of the recent progress in our knowledge about high-energy cosmic rays,
with an emphasis on the interpretation of the different observational results. We discuss the …

The discovery of extensive air showers by Rossi, Schmeiser, Bothe, Kohlhörster and Auger
at the end of the 1930s, facilitated by the coincidence technique of Bothe and Rossi, led to …