Our Earth is surrounded by plasma . The arm of the plasmasphere pointing toward the Sun , on the lower right, was hypothesized but never before seen directly. The Earth's shadow can be seen pointing away from the Sun. The bright regions in the center are full auroral ring s over northern Earth, visible as northern lights from the ground. The plasmasphere is thought created by sunlight energizing molecules in Earth's upper atmosphere and is contained by Earth's magnetic field .
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