What on Earth?

Secrets of the Sahara (1x3)

Air date: Feb 24, 2015

Clusters of wheel like formations are seen by satellite in the desert from Jordan to Saudi Arabia; a glow as large as Connecticut is spotted off the Horn of Africa in the Indian Ocean; symbols hidden in the layout of Washington DC; the eye of the Sahara is a 25 mile wide series of concentric circles and remains a mystery; intense light over Lake Maracaibo, Venezuela known as the everlasting lightning storm; a bizarre cone of rippling clouds are emanating from an island in the Antarctic