Ice Cores Tell the Tale of an Incredibly Powerful Solar Storm That Hit the Earth 9,200 Years Ago - Universe Today universetoday storybywill
The Sun is absolutely essential for most life on Earth and the processes that ensure continued habitability. However, there is a flip side to this relationship, which comes in the form of the “,” an 11-year period where the number and location of sunspots on the surface rises and falls. During periods of peak sunspot activity , the Sun’s surface becomes more energetic, resulting in increased solar wind and the occasional solar flare.
It is currently believed that solar storms are more likely during an active phase of the Sun . However, according to the study led by Lund University researchers, this may not always be the case for particularly large storms. While analyzing ice cores from Greenland and Antarctica, the team found peaks of radioactive isotopes – beryllium-10 and chlorine-36 – which are produced by high-energy cosmic particles associated with solar storms.
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