Ganga River Study: Old Satellite Data to Guide Revival

Scientists are looking at old and new pictures of the Ganga River to see how it has changed.

They are using pictures from 1965 taken by a spy satellite and comparing them to recent pictures.

This helps them see how things like buildings and farms have changed the river.

They're making a plan to help the Ganga get better, using maps and computers to share the information so everyone can help.