G-1 aircraft (IMAGE) DOE/Pacific Northwest National Laboratory Caption Earth scientists used data collected by flying laboratory aircrafts in their discovery of an atmospheric process that creates a type of fine particle over the Amazon rainforest. Credit (Photo by Jason Tomlinson | U.S. Department of Energy Atmospheric Radiation Measurement user facility) Usage Restrictions No restrictions. License Public Domain Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.