The Hessdalen Lights

The Hessdalen Light is an unexplained light usually seen in the Hessdalen valley in Norway. In 2007, a group of teachers, students and scientists established a science camp in Norway to study the phenomenon. On a clear night, Bjorn G. Hauge managed to take this pic using an exposure time of 30 seconds. The analysis of the spectrum reveals the object to be made of silicium, iron, titanium and scandium.