Science Channel - What on Earth? Series 2 (2015) Part 3 Secrets of the Sahara

What on Earth? Series 2 Watching us from space, satellites orbit the Earth at 17,000 miles an hour, capturing images of our world that are breathtaking, and sometimes bizarre. This unique perspective reveals objects and phenomena that defy explanation - massive tsunamis that disappear without trace, a sinister blood-red lake in war-torn Baghdad and a whirlpool in the ocean the size of Connecticut Join experts and witnesses as they investigate and analyse these sites, in an attempt to unravel these mysteries captured from space.

Part 3 Secrets of the Sahara

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.

Science Channel

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Episode One Shown Here