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> RECORD OBS-0164 | status: PARTIALLY SUBSTANTIATED | filed 2026-07-31
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Nazca Lines as Giant Solar Calendar

RecordOBS-0164
CategoryExtraterrestrial/Ancient Aliens
StatusPARTIALLY SUBSTANTIATED
SummaryMaria Reiche proposed that the Nazca Lines functioned as a giant astronomical calendar, allowing the Nazca people to track solstices, equinoxes, and eclipses. This theory is influential but has not been conclusively verified. Reiche used it to counter the alien theory.
OriginProposed by German-born researcher Maria Reiche, who studied the lines from the 1940s until her death in 1998.
Claimed
  • The lines align with the sun's position to mark solstices and equinoxes.
  • The designs allowed prediction of solar eclipses.
  • The geoglyphs are connected to other Nazca cultural elements like pottery.
Evidence / consensusSome alignments with astronomical events exist, but the calendar theory is not universally accepted. Many lines have no clear astronomical correlation, and the primary purpose may have been ritualistic. The theory remains one of several plausible explanations.
> OBSERVER NOTE:
Reiche's work was foundational but her specific calendar claims have not been fully validated. The lines likely served multiple purposes, including ritual and social functions.

Sources

  1. Nazca Lines Theories: The Mystery of The Geoglyphs - Nazca Lines Tours
  2. The Mysterious Nazca Lines | Valencia Travel Cusco

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