About two billion years ago in a galaxy far beyond our Milky Way, a big star met its demise in a massive explosion called a supernova that unleashed a huge burst of gamma rays, which pack the most energy of any wave in the electromagnetic spectrum . Those waves traversed the cosmos and finally reached Earth last year.
This gamma-ray burst, researchers said yesterday, caused a significant disturbance in Earth’s ionosphere, a layer of the planet’s upper atmosphere that contains electrically charged gases called plasm
Source: Energy Industry News (energyindustrynews.net)
Gamma-Ray Burst Supernova Ionosphere Electromagnetic Spectrum Disturbance
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