In 2021, scientists detected an untraceable signal over Utah that led to one of the strongest cosmic ray mysteries ever recorded |
A single particle over Utah pointed to a cosmic ray with no clear origin. Image credit – Gemini One of the strongest cosmic rays in history was detected in May of 2021 in Utah. Amaterasu hit Earth’s atmosphere and caused a big shower of secondary particles. By 2023, scientists had determined that it was the…