<p>A single subatomic particle from deep space had the same energy as a baseball pitch, and scientists still don&rsquo;t know how it got here</p>
Ultra-high energy cosmic rays are subatomic particles from space that possess extremely high energy, often exceeding that of particles produced in terrestrial accelerators. Their origins remain a mystery, with theories suggesting they may come from supernovae, active galactic nuclei, or other cosmic phenomena.
Particle detection methods are techniques used to observe and measure subatomic particles. Common methods include cloud chambers, bubble chambers, and modern detectors like scintillation counters and semiconductor detectors, which help scientists understand the properties and behaviors of these particles.