Join or Log in
"He theorized that an advanced but desperate culture had built the canals to tap Mars' polar ice caps, the last source of water on an inexorably drying planet."

[Source](http://www.wanderer.org/references/lowell/Mars/illus.html)
Mars drawing by Percival Lowell (1855–1916) 
Added 6 years ago by Bryce Wilner
Show info