The Mysterious Amaterasu Particle: A New Chapter in High-Energy Astrophysics

Scientists discover a particle with unprecedented energy levels, raising questions about its origin and potential implications for astrophysics.

In the vast expanse of the cosmos, scientists continue to uncover fascinating particles that challenge our understanding of the universe. From the elusive Higgs Boson to the mind-bogglingly energetic “Oh My God!” particle, each discovery pushes the boundaries of physics further. Now, a new particle has emerged, captivating scientists with its extraordinary energy levels and enigmatic nature. Dubbed the “sun goddess” particle, or Amaterasu, this cosmic ray particle has an energy level one million times greater than what can be generated in our most powerful particle accelerators. Its discovery has opened up a realm of possibilities for high-energy astrophysics, while raising intriguing questions about its origin and the forces that could have given rise to such a particle.

The Unveiling of Amaterasu:

The Amaterasu particle was first detected by the Telescope Array experiment, a collaboration involving researchers from Osaka Metropolitan University and other institutions. Spread across 270 square miles of the high desert in Millard County, Utah, the experiment consists of 507 detectors designed to capture cosmic rays. On May 27, 2021, the researchers were astounded to observe a particle with an energy of 224 exa-electron volts (EeV), a level unseen in cosmic ray detections for the past three decades. At this energy level, Amaterasu stands on par with the famous “Oh My God!” particle, discovered in 1991.

The Mystery of Amaterasu:

Despite its remarkable energy, the origins of the Amaterasu particle remain shrouded in mystery. Scientists have yet to identify any astrophysical object or cosmic event in the direction from which the particle appears to have originated. This has led to speculation about the forces responsible for its creation. Toshihiro Fujii, a researcher from Osaka Metropolitan University, suggests two intriguing possibilities. The first involves the acceleration of the particle by extremely energetic phenomena, such as gamma-ray bursts or jets from supermassive black holes at the centers of active galactic nuclei. The second possibility involves the decay of super heavy dark matter, a concept that extends beyond the Standard Model of particle physics.

Implications for High-Energy Astrophysics:

The discovery of the Amaterasu particle has the potential to revolutionize the field of high-energy astrophysics. By studying this particle, scientists hope to gain insights into the most energetic phenomena in the universe. The Telescope Array experiment, with its upgraded sensitivity, will continue to hunt for cosmic rays and delve deeper into the mysteries surrounding Amaterasu. Furthermore, next-generation observatories are expected to join the quest, providing additional data for a more detailed investigation. The search for answers, according to Fujii, is an exciting new mystery in science that awaits unraveling.


The Amaterasu particle has captivated the scientific community with its unprecedented energy levels and mysterious origins. As researchers strive to understand this enigmatic particle, they are poised to embark on a new chapter in high-energy astrophysics. The discovery of Amaterasu not only challenges our current knowledge but also offers the potential for groundbreaking insights into the most powerful forces at work in the universe. As scientists continue their quest for answers, the story of Amaterasu reminds us of the vast mysteries that still await unraveling in the cosmos.






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