This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science.
These cloud formations were seen over the western Aleutian Islands. Their color
variations are probably due to differences in temperature and in the size of
water droplets that make up the clouds.
This image was acquired by Landsat 7s Enhanced Thematic Mapper plus (ETM+)
sensor on June 16, 2000.
Image provided by the USGS EROS Data Center Satellite Systems Branch