Rains Darken Soil in Texas (IMAGE) University of Arizona Caption For comparison, this image of Texas obtained by astronauts aboard NASA's Gemini 4 spacecraft on June 5, 1965, shows a large dark swath attributed to rainfall. The dark areas correspond to regions that received more than one inch of rain in the days before the image was obtained. The large swath is about 16 kilometers (10 miles) across near the western (left) end. Credit NASA/Johnson Space Center Usage Restrictions Usage granted only in conjunction with reporting/posting of this news release. Image credit must be used as indicated. License Licensed content 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.