EUSO-BALLOON a pathfinder for detecting UHECR's from the edge of space

EUSO- Balloonhas been conceived as a pathfindermission for JEM-EUSO, to perform an end-to-end test of the subsystems and components, and to prove the global detection chain while improving our knowledge of the atmospheric and terrestrial UV background. Through a series of stratospheric balloonflights performed by the French Space Agency CNES, EUSO- BALLOONwill serve as an evolutive test-benchfor all the key technologies of JEM-EUSO. EUSO- Balloonalso has the potential to detect Extensive Air Showersfrom above, marking a key milestonein the development of UHECR science, and paving the way for any future large scale, space-based UHECR observatory.