+18 Hessdalen Lights 2023. There are no specific hot spots. Ruhig ist es hier, zumindest tags über.
The phenomenon is observed in a mountain valley with a length of ca. They move around in the sky and can change direction, speed, and luminosity. In this work, it is shown that these ghostly light balls are produced by an electrically active inversion layer above hessdalen valley during geomagnetic storms.
