Chernobyl's "Red Forest" - one of the most ... Fixed-wing craft are first used to make a general radiation map by flying at about 40mph (65km/h) just above the treetops, in a grid pattern.

Background radiation levels in the Chernobyl area vary widely by location. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by ...