equinox http://kbia.org en Tracking an astronomical mystery http://kbia.org/post/tracking-astronomical-mystery-change <p>For centuries people have lived and worked in a part of coastal Peru spotted with oddly shaped hills. &nbsp;Most knew that the mounds were man made, but were they significant? &nbsp;</p><p> Thu, 12 Apr 2012 13:19:06 +0000 Scott Pham & Rehman Tungekar 12323 at http://kbia.org Tracking an astronomical mystery