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Martin Brennan at Anubis Cave equinox
03:00  - 2 years ago
The author who discovered the winter solstice sunrise lightshow inside Newgrange and other archaeoastronomical alignments nearby at Dowth and Loughcrew, Ireland, witnessed a remarkable series of ancient equinox shadow plays in Oklahoma on March 20, 2007. Martin Brennan says it was like being in heaven. The especially precise fit this year was due to near cloudlessness and an equinox moment only 15 minutes before lights out, which is a testament to how accurately the ancient artist knew the exact celestial cusp and carved the sophisticated petroglyphs.
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