Brilliant curtains of light shimmer over Norwegian mountains on February 14—part of a recent spate of auroras that caught sky-watchers by surprise. because the displays weren't linked to specific eruptions from the sun.
Space scientists think the light shows arose due not to specific solar eruptions but to common—but no less curious—"cracks" in Earth's magnetic shield.
Such cracks form when the sun's magnetic field lines interconnect with those of the Earth. For hours at a time, charged solar particles can spill through the openings, slam into atmospheric gas, and put on dazzling displays.
Absolutely amazing pictures! Lucky folks who actually got to see the magical aurora lights in sky.
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