Ancient Origins
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Episodes/Season 9/Mysteries of the Sphinx
S09 · E02November 7, 2014transcript available

Mysteries of the Sphinx

This episode examines the Great Sphinx of Giza through the lens of geological anomalies and proportional inconsistencies that some researchers believe challenge the conventional timeline. Ancient astronaut theorists, citing water erosion patterns on the monument, argue the Sphinx could date to 10,000 years ago rather than the traditionally accepted 2500 BC construction under Pharaoh Khafra. The episode explores claims that the head appears disproportionately small for the body, suggesting it may have been re-carved from an original form, and presents theories about a possible second sphinx that has been hidden or destroyed. Proponents like Giorgio Tsoukalos propose the original statue may have depicted an extraterrestrial visitor from this earlier epoch.

Mainstream Egyptologists maintain that the Sphinx was carved during the Fourth Dynasty as part of Khafra's building program, with the supposed water erosion explained by wind, sand, and humidity over millennia rather than ancient rainfall. The head-to-body proportion, while unusual, falls within the range of artistic choices made by ancient sculptors working with the natural bedrock formation. Even for skeptics, the episode raises genuinely intriguing questions about weathering patterns that geologist Robert Schoch has studied extensively, and the monument's alignment with celestial events continues to fascinate researchers across disciplines. Whether one accepts ancient astronaut interpretations or not, the Sphinx remains a testament to ambitious engineering that still sparks legitimate scientific debate about construction methods and environmental dating.

Sites Featured in This Episode4 locations

Arecibo Observatory

United States (Puerto Rico) · Modern

The episode presents the 1974 Arecibo transmission of binary-encoded information about Earth into deep space as the initiating event to which the Chilbolton crop formation was allegedly a reply, framing the observatory as the origin point of humanity's first deliberate attempt at extraterrestrial communication. Mainstream history records this as a symbolic demonstration of radio telescope capability rather than a genuine attempt to contact a specific civilization.

Giza Plateau

Egypt · Ancient Egyptian

Ancient Aliens proposes that the Giza Plateau, including structures beyond the Great Pyramid, contains evidence of extraterrestrial intervention and may hide a second, twin Sphinx deliberately concealed from humanity.

Northumberland Neolithic petroglyphs

United Kingdom · Neolithic British

Theorists argue, following a 2014 NASA/SETI document, that the Neolithic petroglyphs of Northumberland may constitute a form of extraterrestrial communication or encode alien messages in rock art. The NASA document itself does not directly attribute the art to extraterrestrials but proposes the possibility that rock art could be tied to otherworldly communication.

Thornborough Henges

United Kingdom · Neolithic British

Theorists contend that the Thornborough Henges were deliberately laid out to mirror Orion's belt with stunning accuracy, implying advanced astronomical knowledge and possible extraterrestrial influence. Mainstream archaeologists regard them as a Neolithic ceremonial landscape complex built between 3500 and 2500 BC.

On-Camera Voices

Andrew Collins1 statement
Can we see it as a reply?
Robert Ridge1 statement
Thought it was really
Robert Schoch1 statement
They're an incredible