Scientists have long believed there is an upper limit to the intensity of solar storms that could affect Earth.However, new research challenges this assumption, suggesting Earth's magnetic field may respond proportionally to extreme events without saturation.

The study addresses how measurements from satellites at the L1 Lagrange point can mislead analyses by not accounting for time delays and plasma changes during solar wind travel.

Using statistical models and regression calibration techniques, researchers found that geomagnetic responses are linear rather than saturated, implying past estimates of solar storm impacts could be underestimated.

This has significant implications for space weather preparedness, as extreme events like the 1859 Carrington Event might have far greater consequences today due to modern infrastructure dependencies on satellites and communication systems.

The findings, published in Nature, highlight the need for updated models that consider these potential effects without assuming natural limits to Earth's responses.