"I have been working the Andøya Rocket Range for 25 years (the 20 last years in the management) and I have become more and more fascinated by the aurora," Mikalsen told Discovery News. "Photography is a hobby for me."
According to Mikalsen, as soon as he posted his aurora photographs on the Spaceweather.com Northern Lights Gallery, he received dozens of emails from all over the world requesting more information about the mysterious shape.
So what could it be? In correspondence with Truls Lynne Hansen, lead scientist at the Tromsø Geophysical Observatory, he doubts that the mystery object can be explained by a technical fault.
"Usually such aberrations appear when there is a small and intense source of light in the field of view, or at least so close that the light from it hits the lens," Hansen explained to me via email. "That seems not to be the case here."
"Additionally the color of the ‘phenomenon' is the same as the color in the aurora, the auroral green line from atomic oxygen," Hansen continued, "so the ‘phenomenon' is either a genuine auroral feature or a reflection of auroral light somewhere in space."