Van Allen suggested that this event arose due to radiation belt emissions, though that was disproven since it involves mostly low-energy electrons.
In 2004, a 30-kilometer wide analog of this Earth phenomenon was observed at Mars's Terra Cimmeria. Van Allen suggested that this event arose due to radiation belt emissions, though that was disproven since it involves mostly low-energy electrons. It is thought to arise from Birkeland currents dipping in and out of the ionosphere, which are then aligned by the earth's magnetic field in the east-west direction to create the fleeting colorful "curtains" commonly associated with this phenomenon. Observed in the night sky in places like Norway and Canada, for 10 points identify this colorful phenomenon also known as the northern lights.
In 2004, a 30-kilometer wide analog of this Earth phenomenon was observed at Mars's Terra Cimmeria.
Aurora Borealis [or Northern polar lights before mentioned]