MSTF Media reports:
Lightning flashes across the sky, briefly illuminating it before darkness reigns again. This dazzling spectacle is the typical image of lightning etched in our minds. This massive electrical discharge, however, gives rise to other amazing phenomena that are very rarely seen.
These lesser-known phenomena differ from the familiar lightning that occurs in the lowest layer of the atmosphere, the troposphere. They typically manifest above the cloud tops and in the upper layers of the atmosphere, i.e. in the mesosphere and lower ionosphere. So, it is only natural that we do not see them! These phenomena are called transient luminous events because they occur within one or a few milliseconds and then disappear. In addition, other phenomena occur during lightning that are not optically visible, but have an effect on the atmosphere.
Umran Inan, a Turkish scientist and former professor at Stanford University, is one of the scientists who, along with his team, has researched these phenomena. His area of expertise is very low frequency (VLF) electromagnetic radiation and geosciences. Red sprites, elves, and blue jets are among the mysterious names given to some of these transient luminous events; phenomena that have also been observed from space shuttles.