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> RECORD OBS-0659 | status: PARTIALLY SUBSTANTIATED | filed 2026-07-31
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Nazca Lines as Astronomical Calendar

RecordOBS-0659
CategoryExtraterrestrial/Ancient Aliens
StatusPARTIALLY SUBSTANTIATED
SummaryThis theory, proposed by Maria Reiche, suggests the Nazca Lines functioned as a giant solar calendar to track solstices, equinoxes, and eclipses. It was influential but attempts to verify it have been inconclusive.
OriginProposed by German-born researcher Maria Reiche, who studied the lines for 40 years starting in the 1940s.
Claimed
  • The lines align with the sun and stars to mark astronomical events.
  • The geoglyphs served as a calendar for agricultural and ceremonial purposes.
  • The monkey figure corresponds to the constellation Ursa Major, and the spider to Orion.
Evidence / consensusSome alignments exist, but the theory is not fully supported. Modern research suggests the lines were more likely related to water rituals and pilgrimage routes.
> OBSERVER NOTE:
Reiche's theory was a step away from mysticism, but the evidence is mixed. The lines may have had multiple purposes.

Sources

  1. Nazca Lines Theories: The Mystery of The Geoglyphs - Nazca Lines Tours
  2. Why the Nasca lines are among Peru's greatest mysteries | National Geographic
  3. The Enigma of the Nazca Lines: Strange Theories and Unanswered Questions | Ancient Origins

Sources are external and provided for verification. Listing does not imply the Observer endorses their claims.