Cosmic Rays in the Milky Way and Beyond

Understand

Cosmic rays (CRs) are the probes of the deep space.

• They allow us to study particle acceleration, chemical composition of the interstellar medium, and global properties of our Galaxy.
• However, until recently studies of CRs were similar to astronomical observations with blurred lenses that capture only the integral brightness of all stars in the field of view.
• Thanks to the recent technological developments, our "lenses" are now capable of capturing sharp images and making precise measurements of all CR species.