
Artist rendering of a Martian lake.
In fact, you’d have to travel to Mars to see it. In a time machine set to go back 3.4 billion years.
This is the lake NASA scientists believe may have existed on Mars. It would have been about the size of Lake Champlain.
The lake water is a Photoshop illusion, but the 30-mile long canyon pictured is real. The image was taken by NASA's Mars Reconnaissance Orbiter.



