A geomagnetic storm is a large-scale disturbance of Earth’s magnetosphere caused by enhanced coupling between the solar wind and the geomagnetic field, typically following coronal mass ejections or high-speed solar wind streams from coronal holes. It is characterized by intensified magnetospheric convection, ring current enhancement, and reconfiguration of current systems such as the auroral electrojets. Storm development and recovery phases are quantified by indices like Dst and Kp, reflecting global magnetic field perturbations. Geomagnetic storms drive strong ionospheric currents, modify radiation belt populations, enhance auroral activity, and can induce geomagnetically induced currents in conductive technological infrastructures.
Solar storms brought colorful auroras to unexpected places on Tuesday night, and there could be more to come.
Space Exploration
Nov 12, 2025
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Space weather forecasters issued an alert on Tuesday for incoming severe solar storms that could produce colorful northern lights and temporarily disrupt communications.
Space Exploration
Nov 12, 2025
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Solar storms may bring colorful auroras to several northern U.S. states Thursday night.
Space Exploration
Nov 6, 2025
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In May 2024, part of the sun exploded.
Planetary Sciences
Oct 28, 2025
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Threats from space aren't always obvious, but statistically, it's only a matter of time before one of them happens. One of the most concerning for many space experts is a massive solar storm, like the one that literally lit ...
Space Exploration
Oct 25, 2025
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Weather forecasting is a powerful tool. During hurricane season, for instance, meteorologists create computer simulations to forecast how these destructive storms form and where they might travel, which helps prevent damage ...
Astronomy
Oct 13, 2025
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Spirals of solar wind can spin off larger solar eruptions and disrupt Earth's magnetic field, yet they are too difficult to detect with our current single-location warning system, according to a new study from the University ...
Astronomy
Oct 6, 2025
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An article published in the journal Communications Medicine points to a correlation between disturbances in Earth's magnetic field resulting from solar storms and an increase in the frequency of heart attacks, especially ...
Planetary Sciences
Sep 29, 2025
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Rising concentrations of carbon dioxide in the upper atmosphere will change the way geomagnetic storms impact Earth, with potential implications for thousands of orbiting satellites, according to new research led by scientists ...
Planetary Sciences
Aug 14, 2025
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The region of space dominated by Earth's magnetic field is the magnetosphere. Observations have shown that, within this region, an electric force acts from the morning side to the evening side as seen from Earth. This large-scale ...
Planetary Sciences
Aug 6, 2025
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