AI Insight
New research proposes that the Amaterasu particle and other extreme cosmic rays may be ultraheavy atomic nuclei heavier than iron, rather than protons as previously assumed. These heavier nuclei can better preserve their energy during their journey through space, potentially explaining how such high-energy particles successfully reach Earth. This finding could provide insight into the violent cosmic events that generate these rare, energetic particles.
Why it matters
Understanding the composition of ultra-high-energy cosmic rays helps scientists identify their sources and the extreme astrophysical processes that accelerate particles to such extraordinary energies. This research could advance our knowledge of the most powerful events in the universe and improve cosmic ray detection and interpretation methods.
The mysterious Amaterasu particle may not be a proton at all. New research suggests that some of the most extreme cosmic rays could be ultraheavy atomic nuclei, heavier than iron, which are better able to retain their energy while traveling through space. This idea could help explain how these rare particles reach Earth and provide new clues about the powerful cosmic explosions that create them.
Source: Scientists think they solved the mystery of the Amaterasu particle