NASA's STEREO-A spacecraft happened to be sitting in the path of the July 2012 Carrington-class storm and took the full hit instead of Earth — the only reason we have detailed measurements of a blow w
NASA's STEREO-A spacecraft provided critical data by directly encountering a massive solar storm in 2012 that missed Earth. This event has become the benchmark for understanding the potential impact of extreme solar weather on modern infrastructure.
Why it matters
Understanding Carrington-class storms is vital for protecting global power grids and satellite communications from catastrophic solar events.
On July 23, 2012, NASA s STEREO-A spacecraft was drifting ahead of Earth in its solar orbit when a coronal mass ejection tore off the Sun and slammed directly into its instruments — a blast that would later be measured at Carrington-class intensity, the same scale as the 1859 storm.
The article is a scientific report based on historical data and NASA findings.
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