Mystery Image of the Day NA
Monday-Friday we'll be posting an image here with clues - can you guess what the subject of the photo is? Answers on the next day!
Images are free and in the public domain, but please credit NASA.
Read MoreImages are free and in the public domain, but please credit NASA.
This shallow (10.5m deep) endorheic lake gives its name to 1 of 4 bordering countries and provides water for 30 million people. It's a former inland-sea and on the edge of the Sahara. ISS over Africa. (ANSWER: Lake Chad)
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