Cosmic radiation

Quick Facts: Who was Cosmic radiation?

Subject:

Cosmic radiation

Known for:

High-energy particles originating outside the Solar System, impacting Earth's atmosphere.

Verified Source:

2Day Chrono-Wiki & Primary Historical Archives

Origins & Early Life

Cosmic rays or astroparticles are high-energy particles or clusters of particles (primarily represented by protons or atomic nuclei) that move through space at nearly the speed of light. They originate from outside the Solar System—from the Milky Way, from distant galaxies, and from the Sun. Upon impact with Earth's atmosphere, cosmic rays produce showers of secondary particles, some of which reach the surface, although the bulk are deflected into space by Earth's magnetic field (the magnetosphere) or by the heliosphere.

Career & Major Achievements

Cosmic rays were discovered by Victor Hess in 1912 in balloon experiments, for which he was awarded the 1936 Nobel Prize in Physics. Direct measurement of cosmic rays, especially at lower energies, has been possible since the first satellites in the late 1950s.

Enduring Legacy & Impact

Particle detectors similar to those used in nuclear and high-energy physicsINK_0@@ are used on satellites and space probes for research into cosmic rays. Data from the Fermi Space Telescope (2013) have been interpreted as evidence that a significant fraction of primary cosmic rays originate from the supernova explosions of stars.

Chronological Milestones & Life Events

1. 1912: 1912 Milestone — Cosmic rays were discovered by Victor Hess in 1912 in balloon experiments, for which he was awarded the 1936 Nobel Prize in Physics.
2. 2013: 2013 Milestone — Data from the Fermi Space Telescope (2013) have been interpreted as evidence that a significant fraction of primary cosmic rays originate from the supernova explosions of stars.

Historical Fact-Check Quiz: Cosmic radiation

True or False: “Cosmic rays are primarily detected by measuring secondary particles created when primary high-energy cosmic rays impact Earth's upper atmosphere.”

Answer (TRUE ⭕): While primary particles are the source, the bulk of what is measured at lower altitudes are secondary particles resulting from the cascade shower created by the initial impact in the atmosphere.

Contemporary Figures & Related Historical Timelines

• A. E. van Vogt — Historical peer (Born in 1912) (1912): Influential Canadian-American science fiction writer known for bizarre narratives.
• Abubakar Tafawa Balewa — Historical peer (Born in 1912) (1912): First and only Prime Minister of Nigeria, a dominant figure in the nation's independence.
• A. E. Housman — Historical peer (Died in 1936) (1936): English classicist and poet, renowned for his scholarship and melancholic verse.
• A. S. Byatt — Historical peer (Born in 1936) (1936): Acclaimed English novelist, poet, and critic known for complex literary works.
• Aaron Swartz — Historical peer (Died in 2013) (2013): Pioneering programmer, activist, and hacktivist known for RSS, Markdown, and progressive organizing.
• Ada Louise Huxtable — Historical peer (Died in 2013) (2013): Pioneering American architecture critic who elevated urban design to public discourse.

Frequently Asked Questions about Cosmic radiation