The Hessdalen phenomenon is an unexplained light usually seen in the Hessdalen valley in Norway.
Unusual lights have been reported here since the 1940s or earlier. Especially high activity of Hessdalen lights took place from December 1981 until the summer of 1984 when lights were observed 15–20 times per week. Since then, the activity has decreased and now the lights are observed some 10–20 times per year.
But now scientists think the unusual lights could be formed by a natural ‘battery’ buried deep underground, created by metallic minerals reacting with a sulphurous river running through it.
The researchers noticed a small fluctuation in the areas’ magnetic field before the formation of the lights, but when they measured radioactivity and seismic activity – both of which could cause such a phenomenon
Jader Monari of the Institute of Radio Astronomy in Medicina, Italy, has studied the Hessdalen site since 1996 and found that rocks in the valley are rich in zinc and iron on one side of the river running through it, and rich in copper on the other side. ‘If there is sulphur in the water in the middle, it makes a perfect battery’ he said.
Dr Monari believes that bubbles of ionised gas are created when sulphurous fumes from the River Hesja react with the humid air of the valley. The geology also forms electromagnetic field lines in the valley, which could explain why the orbs of light move around.
In spite of ongoing research there is no convincing explanation of the origin of these lights (Orbs/Spheres) and it not explain other strange sightings (image above) linked to the UFO phenomenon.