Satellites spy remnants of hidden Bronze Age settlement in Serbia

A view of farmland shows a faint outline of a round settlement with brighter patches in the center.

Satellite imagery has revealed a network of more than 100 Bronze Age structures hidden in the Serbian plains.

Archaeologists first noticed the remnants of the more than 3,000-year-old enclosures in 2015 while reviewing Google Earth photos of a 93-mile stretch (150 kilometer) of wilderness along Serbia's Tisza River, according to a study published Nov. 10 in the journal PLOS One.