This review summarizes recent developments in the understanding of high-energy cosmic
rays. It focuses on galactic and presumably extragalactic particles in the energy range from�…

Neutrino astronomy beyond the Sun was first imagined in the late 1950s; by the 1970s, it
was realized that kilometer-scale neutrino detectors were required. The first such instrument�…

The diffuse Galactic γ-ray emission, mainly produced via interactions between cosmic rays
and the interstellar medium and/or radiation field, is a very important probe of the�…

Abstract The DArk Matter Particle Explorer (DAMPE), one of the four scientific space science
missions within the framework of the Strategic Pioneer Program on Space Science of the�…

Context. Young massive stellar clusters are extreme environments and potentially provide
the means for efficient particle acceleration. Indeed, they are increasingly considered as�…

The origin of Galactic cosmic rays is a century-long puzzle. Indirect evidence points to their
acceleration by supernova shockwaves, but we know little of their escape from the shock�…

In cosmic ray physics extensive progress has been made in recent years, both concerning
theory and observation. The vast details in direct, indirect and secondary detections on the�…

Abstract The High Altitude Water Cherenkov (HAWC) observatory is an array of large water
Cherenkov detectors sensitive to gamma rays and hadronic cosmic rays in the energy band�…

The Geminga pulsar has long been one of the most intriguing MeV-GeV γ-ray point sources.
We examine the implications of the recent Milagro γ-ray Observatory detection of extended�…

We present the result of a search of the Milagro sky map for spatial correlations with sources
from a subset of the recent Fermi Bright Source List (BSL). The BSL consists of the 205 most�…