Historic find! Largest-ever solar storm strike on Earth revealed- 10 times Stronger than the Carrington event

tech.hindustantimes.com:

The Carrington event is the largest recorded solar storm in history. The solar storm was so powerful that it caused sparks and fires in telegraph machines, started forest fires and caused power grid failures. But a new study suggests that it was not the largest-ever solar storm to strike the Earth after all. It appears that centuries before, the Sun ejected a rapid burst of solar energy so powerful that the resultant solar storm was ten times more intense than the Carrington event. For years, scientists have wondered just how powerful a solar storm can be and this new revelation has created new worries. Read on to know more about this dangerous solar storm and how researchers were able to find out about it.

The data comes from a study published in the Nature journal where a group of Japanese researchers analysed tree ring data to find out about the existence of this solar storm. According to it, this particular solar event took place between 774–775 AD, which is roughly about 1,085 years before the Carrington event. The evidence was found in Cedar trees in Japan which all show a huge spike in carbon-14. What is truly interesting is the way these researchers confirmed that this spike in carbon - 14, which could have appeared due to any cosmic event, was actually from a solar storm.

According to a report by Big Think, the researchers figured out that between 774-775, a large cosmic event took place which increased the carbon-14 concentration in trees by a staggering 12%. As carbon-14 is a radioactive isotope of the stable carbon-12, it does not occur on our planet naturally. The high energy beams from solar storms, gamma bursts, supernovae explosions and other cosmic events usually form this particular isotope.

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