What on Earth?

Photographs of a 25-mile structure known as the eye of the Sahara, and an extraordinary cloud emanating from an island in the Indian Ocean

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Photographs of a 25-mile structure known as the eye of the Sahara, and an extraordinary cloud emanating from an island in the Indian Ocean

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

The series examines six more mysterious satellite images, including a possible smokescreen over North Korea, and two forgotten pyramids in Egypt

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

The mysterious Arizona desert cypher, the lair of the war elephant and a trip to a 'zombie' village

Witnesses recount seeing unexplained shapes in the deserts of Genghis Khan. Plus, the mystery fleet of ice planes at the end of the Earth

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

The series examines six more mysterious satellite images, including a possible smokescreen over North Korea, and two forgotten pyramids in Egypt

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Photographs illustrate how the barely inhabited Australian Outback seems to light up like a network of vast cities when viewed from space

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

The mysterious Arizona desert cypher, the lair of the war elephant and a trip to a 'zombie' village

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

What seems to be the face of Christ is found in a field in Hungary, and a sinister shape spotted in the mountains of Afghanistan leads investigators to a hidden atrocity

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

What seems to be the face of Christ is found in a field in Hungary, and a sinister shape spotted in the mountains of Afghanistan leads investigators to a hidden atrocity

A strange structure spotted in Mongolia may be the lost tomb of Genghis Khan, and bizarre rings in Spain could lead to the lost city of Atlantis

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

A strange structure spotted in Mongolia may be the lost tomb of Genghis Khan, and bizarre rings in Spain could lead to the lost city of Atlantis

The legends of ancient giants surrounding a mysterious monument in the Holy Land. Plus, how satellite images help with the investigation into a missing boy

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

The legends of ancient giants surrounding a mysterious monument in the Holy Land. Plus, how satellite images help with the investigation into a missing boy

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Following investigators as they seek new clues regarding the Malaysia Airlines flight MH370 that disappeared in March 2014

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Following investigators as they seek new clues regarding the Malaysia Airlines flight MH370 that disappeared in March 2014

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

Strange spots near the Grand Canyon may lead to the legendary treasure of a notorious bandit. Plus, a massive chunk of ice disappears in Antarctica

What seems to be the face of Christ is found in a field in Hungary, and a sinister shape spotted in the mountains of Afghanistan leads investigators to a hidden atrocity

Strange spots near the Grand Canyon may lead to the legendary treasure of a notorious bandit. Plus, a massive chunk of ice disappears in Antarctica

Witnesses recount seeing unexplained shapes in the deserts of Genghis Khan. Plus, the mystery fleet of ice planes at the end of the Earth

The legends of ancient giants surrounding a mysterious monument in the Holy Land. Plus, how satellite images help with the investigation into a missing boy

Following investigators as they seek new clues regarding the Malaysia Airlines flight MH370 that disappeared in March 2014

Strange black holes appear near Egypt's pyramids, ruins in Peru suggest the Incas knew more than may be imagined, and a mysterious red swarm invades a beach in India

Strange black holes appear near Egypt's pyramids, ruins in Peru suggest the Incas knew more than may be imagined, and a mysterious red swarm invades a beach in India