NASA SVS 10973: NASA’s Own Landsat Satellites Documented “Crop Circles” from Space — But These Are Center-Pivot Irrigation Fields Near Dalhart, Texas. A 40-Year Time-Lapse (1972-2011) Shows the Agricultural Revolution From Square to Circular Fields. This Is NASA’s Scientific Explanation for the Most Common Circular Pattern Seen from Orbit — But It Doesn’t Explain the Wiltshire Formations Which Appear in Rain-Fed Fields.

NASA Scientific Visualization Studio release 10973 (May 15, 2012) — NOT about paranormal crop circles. Center-pivot irrigation agricultural fields near Dalhart, Texas panhandle. WHAT NASA DOCUMENTED: A 40-year Landsat time-lapse (1972-2011) showing the agricultural transformation of the Texas panhandle. Traditional rectangular rain-fed fields replaced by circular “polka dot” patterns as farmers adopted center-pivot irrigation — a method invented by Frank Zybach in 1949 in which water is pumped through a rotating sprinkler arm like a clock hand, necessitating perfectly circular fields. False-color Landsat imagery: Red = healthy crops. White-green = bare soils. Result from satellite: a vast grid of perfect geometric circles. This is the most common explanation for circular patterns visible from orbit — agricultural irrigation, not anomalous phenomena. WHY THIS MATTERS FOR UAP ORACLE: NASA’s Landsat archive (1972-present) covers the globe and is freely available. This satellite analysis can distinguish irrigation circles from genuinely anomalous formations. The Wiltshire crop circle formations do NOT appear in agricultural regions using center-pivot irrigation — they appear in traditionally rain-fed fields where circular patterns have no agricultural explanation. This distinction is critical: researchers use exactly this kind of satellite remote sensing to separate irrigation artifacts from genuinely anomalous formations. The Wiltshire formations remain unexplained by this mechanism.