Satellite imagery captured over 13 years shows the extent of dwindling water levels in Lake Mead, a reservoir that straddles the border between Nevada and Arizona.The Cooperative Institute for Research in the Atmosphere at Colorado State University released the imagery on February 19 and said it was captured from 2012 to 2025.NASA said the lake, which is the largest reservoir in the United States and located just 24 miles east of Las Vegas, has been shrinking for more than two decades. Credit: CSU/CIRA and NOAA/NESDIS via Storyful