Science ❯Physics ❯Particle Physics

Cosmic Rays

ANITA Experiment Anomalous Signals Plasma Science Cosmic-Ray Electrons Cosmic Ray Showers Charged Particles Interaction with Sun's Magnetic Field Antarctic Impulsive Transient Antenna (ANITA) Neutrinos Deuterons Relativistic Electrons

Electric Fields and X-Rays Drive Photoelectric Chain That Ignites Lightning

Cosmic-ray–seeded electrons in thundercloud fields produce X-rays that trigger runaway avalanches, accounting for silent gamma-ray flashes.

ANITA Detects Unexplained Radio Signals Beneath Antarctic Ice

ANITA Detector Logs Anomalous Radio Pulses From Beneath Antarctic Ice

Astronomers Trace High-Energy Cosmic-Ray Electrons to Nearby Sources

AMS Detector on ISS Uncovers Unexpected Cosmic Ray Surplus