However, Mr Hansen said it was unlikely the Northern Lights could create the optical effect on its own. Instead the aurora might be bouncing off an external source like a satellite or an airplane.

然而，后来经调查，他排除了该现象是北极光自身产生的推测，他认为这可能是一个物体例如卫星或飞机反射极光产生的影像。

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However, Mr Hansen said it was unlikely the Northern Lights could create the optical effect on its own. Instead the aurora might be bouncing off an external source like a satellite or an airplane.

然而，后来经调查，他排除了该现象是北极光自身产生的推测，他认为这可能是一个物体例如卫星或飞机反射极光产生的影像。

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