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The Oh-My-God particle was an ultra-high-energy cosmic ray detected on 15 October 1991 by the Fly's Eye camera in Dugway Proving Ground, Utah, United States. [1] [2] [3] As of 2024, it is the highest-energy cosmic ray ever observed. [4] Its energy was estimated as (3.2 ± 0.9) × 10 20 eV (320 exa-eV). The particle's energy was unexpected and ...
Ultra-high-energy gamma rays are gamma rays with photon energies higher than 100 TeV (0.1 PeV). They have a frequency higher than 2.42 × 10 28 Hz and a wavelength shorter than 1.24 × 10 −20 m. The existence of these rays was confirmed in 2019. [1] In a 18 May 2021 press release, China's Large High Altitude Air Shower Observatory (LHAASO ...
The gamma-ray burst was ten minutes long, [1] but was detectable for more than ten hours following initial detection. [2] [3] Despite being around 2.4 billion light-years away, it was powerful enough to affect Earth's atmosphere, having the strongest effect ever recorded by a gamma-ray burst on the planet.
The highest natural ground surface temperature ever recorded may have been an alleged reading of 93.9 °C (201.0 °F) at Furnace Creek, California, United States, on 15 July 1972. [7] In 2011, a ground temperature of 84 °C (183.2 °F) was recorded in Port Sudan, Sudan. [8] The theoretical maximum possible ground surface temperature has been ...
THEMIS (Explorer 85-89) →. Neil Gehrels Swift Observatory, previously called the Swift Gamma-Ray Burst Explorer, is a NASA three-telescope space observatory for studying gamma-ray bursts (GRBs) and monitoring the afterglow in X-ray, and UV/Visible light at the location of a burst. [ 5 ] It was launched on 20 November 2004, aboard a Delta II ...
Ultraviolet (UV) light is electromagnetic radiation of wavelengths of 10–400 nanometers, shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs, Cherenkov radiation, and ...
In astroparticle physics, an ultra-high-energy cosmic ray (UHECR) is a cosmic ray with an energy greater than 1 EeV (10 18 electronvolts, approximately 0.16 joules), [ 1 ] far beyond both the rest mass and energies typical of other cosmic ray particles. These particles are extremely rare; between 2004 and 2007, the initial runs of the Pierre ...
This display was the strongest seen since 2003, rating a G5 on the geomagnetic scale. ... mostly in the form of ultraviolet light and X-rays, that can hurtle toward Earth at the speed of light ...
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