Cosmic rays are regularly entering the atmosphere. Image by
Mysterious cosmic rays emanated by black holes to be detected using smarthones - space news

Cosmic rays are regularly entering Earth’s atmosphere, including the very rare ultra-high energy cosmic rays which originate in black holes and supernovae. They are so rare that only one event in 100 years could be detected by a big surface detector. Now researchers have a solution to improve detection rate: use people’s smartphones. The phone’s camera can detect these events and volunteers have been asked to install an app on their phones that identifies cosmic rays. In the future, millions of smartphones could form a huge network helping astrophysicists understand the mystery of cosmos.

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