Aurora on February 24, captured in a farmhouse near the city of Yellowknife in northern Canada. The impressive sequence (from left to right) three all-sky exposures taken at intervals of 30 seconds, show rapid changes as a curtain dancing northern lights on a starry background. That produces the aurora borealis dance? Measurements made by NASA's fleet of THEMIS spacecraft indicate that these bursts of auroral activity are driven by the sudden release of energy in the Earth's magnetosphere called magnetic reconnection event.
These reconnection events occurring in the magnetosphere on the nightside of the Earth at a distance of approximately 1 / 3 of the distance to the moon. We
auroras because the sun has come out of its "ivernación"
The auroral oval as seen from space. The false-color red indicates the brightest aurora and blue darker. The brightest aurora is found at midnight.
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