Solar storms: How deadly can they get?
A violent solar flare has reminded us just what changes in the sun’s surface conditions can do to us. Strong solar storms can bring down power infrastructure, communications and disrupt navigation—facets through which the modern world functions. Mint explains: Most solar flares are violent storms of plasma material on the sun’s surface, creating a strong gust of charged particles, or solar ‘wind’, through space.
This wind carries with itself a magnetic field. But our planet has its own magnetic field too—Earth’s magnetosphere is the outermost layer of our atmosphere. While this field protects us from most solar flares, very strong ones overwhelm our magnetic field, causing charged particles from the sun to enter our lower atmosphere.
In turn, this creates Aurora borealis—the magical northern lights—but it can also bring down any electronic or electrical system. Think of a solar flare hitting a satellite as a small bolt of lightning hitting a gadget. If this happens, an overflow of electricity will damage most circuits and wiring because they carry more charge than what our systems are designed for.
While satellites and power grids have protections against regular solar wind, flares can be of unpredictable magnitude, and destroy such equipment. Solar flares also heat up our atmosphere due to very high concentration of charged particles, which too hits satellites on their trajectories. Two years ago, Elon Musk lost nearly 50 satellites just after launching, because of this.
The most violent was the ‘Carrington Event’ of 1859, when global telegraph infrastructure blacked out. The next worst was the ‘Halloween Storm’ of 2003, which brought down power infrastructure in South Africa and Sweden. Last week’s storm is bad enough
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