Victor Hess
Victor Franz Hess was an Austrian physicist who is most famous for his work on the discovery of cosmic rays. In 1912, he conducted a series of balloon flights to measure the intensity of ionizing radiation at different altitudes and found that the radiation increased with altitude, thus proving its extraterrestrial origin. His pioneering research led to significant advances in understanding high-energy particles and their sources.
LHAASO’s Confirmation: The Universe’s Most Powerful Cosmic Ray Sources
Summary
The video introduces the often-overlooked reality of cosmic rays, high-energy particles that constantly bombard Earth from outer space. Despite the seemingly serene night sky, these tiny particles, predominantly protons, pose a significant threat. Upon entering Earth’s atmosphere, they trigger a chain reaction of ionization, which can damage satellites and disrupt communications.
Key Points
- Cosmic rays are a major source of high-energy particles.
- They originate from various sources in the universe, including supernovae and active galactic nuclei.
- The Large High Altitude Air Shower Observatory (LHAASO) has confirmed some of the most powerful cosmic ray sources known to date.
Related Concepts
- supernovae
- active-galactic-nuclei
References
2026 04 13 LHAASOs Confirmation The Universes Most Powerful Cosmic Ray Sources