Maintenance in progress

a study in nature used canopy-penetrating lidar across 4,430 km of brazil's acre state and found 432 monumental earthworks, 396 of them previously undocumented, with authors arguing a precolonial amazonian population of 1.25 to 3 million around 100-300 ad. a separate archaeological claim circulating the same week describes a lost 2,000-year-old forest civilization compared to ancient greece. the lost-civilisation argument long confined to the heterodox fringe is now being carried by peer-reviewed remote sensing, which narrows the gap between the fringe claim and the institutional record.

peer-reviewed remote sensing and archaeology coverage