South America’s second largest river, the Paraná River (and its tributaries) is seen here in this astronaut photo acquired on April 9, 2011, revealing an 18-mile-across (29 kilometers) expanse of the river downstream from Goya, Argentina.

South America’s second largest river, the Paraná River (and its tributaries)

South America’s second largest river, the Paraná River (and its tributaries) is seen here in this astronaut photo acquired on April 9, 2011, revealing an 18-mile-across (29 kilometers) expanse of the river downstream from Goya, Argentina. - NASA

Yea X