by James Felton
July12, 2022
Introduction:
Read more here: https://www.iflscience.com/60-years-ag ... ace-64400(IFL Science) On July 9, 1962, crowds gathered on the beaches of Honolulu, Hawaii, and watched as the US detonated a nuclear bomb in outer space.
Known as Starfish Prime, the explosion was part of a series of high-altitude nuclear tests known somewhat innocuously as "Operation Fishbowl". Five nuclear devices were set off during the tests, with Starfish being the largest at approximately 1.4 megatons (the equivalent in terms of energy discharge of 1.4 million tons of TNT being detonated all at once).
After the bomb was detonated some 400 kilometers (249 miles) above Johnston Island in the Pacific Ocean, and auroras were seen across the sky as electronics began to fail.
"At Kwaialein, 1400 miles to the west, a dense overcast extended the length of the eastern horizon to a height of 5 or 8 degrees," one eyewitness of the event said, as recorded in a military report.
"At 0900 RC a brilliant white flash burned through the clouds rapidly changing to an expanding green ball of irradiance extending into the clear sky above the overcast. From its surface extruded great white fingers, resembling cirro-stratus clouds, which rose to 40 degrees above the horizon in sweeping arcs turning downward toward the poles and disappearing in seconds to be replaced by spectacular concentric cirrus like rings moving out from the blast at tremendous initial velocity, finally stopping when the outermost ring was 50 degrees overhead. "

That is not the Sun.
Image credit: US Gov/Public domain