"The first CREDO registration of extensive air shower" - Karbowiak et al (2020)
Alan Duffy
It’s no secret I’m a fan of our global cosmic ray citizen science project - CREDO - which allows you to use your smartphones to detect cosmic rays; inconceivably high-energy particles from exploding stars and feeding blackholes from the depths of space. The wider CREDO team in this paper took a step forward in complexity by connecting up four CosmicWatch detectors together and confirm that this low-cost commodity based detector can see extensive air showers as the cosmic rays cause a spread out cascade of particles by the time they reach the Earth’s surface. This work shows just how cost-effective it can be for even schools let alone universities to explore this region of ultra-high energy particle physics!