Amaterasu: Rare and Super-Energetic Particle from Outer Space

January 12, 2024

GS Paper III Science and Technology

Context:

Recently, Scientists have detected a rare and extremely high-Energetic Particles cosmic ray known as Amaterasu particles falling to Earth.

About Amaterasu: Cosmic Ray with Unprecedented Energy

Amaterasu’s origin remains a mystery as it appears to come from an empty part of the universe, defying existing astronomical explanations.
It is the second-highest-energy cosmic ray detected and was found by analyzing data collected between May 2008 and November 2021 by the Telescope Array Project in the U.S.
The Amaterasu particle has an energy exceeding 240 exa-electron volts (EeV), millions of times more than particles produced in the Large Hadron Collider (the most powerful accelerator ever built).

What are Cosmic Rays?

Cosmic rays are high energy particles that move through space at nearly the speed of light.
Most cosmic rays are atomic nuclei stripped of their atoms with protons (hydrogen nuclei) being the most abundant type but nuclei of elements as heavy as lead have been measured.
Cosmic rays provide direct samples of matter from outside the solar system.

News Source: The Hindu

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