This image of Musa Bay in north-eastern Iran comes from ESA's Copernicus Sentinel-2A satellite. Here you can see very well how similar the "dendritic" patterns of valleys on Earth and Mars are. More on this: <a rel="nofollow" class="external text" href="https://www.dlr.de/dlr/desktopdefault.aspx/tabid-10333/623_read-32294/#/gallery/33520">www.dlr.de/dlr/desktopdefault.aspx/tabid-10333/623_read-3...</a> <a rel="nofollow" class="external text" href="http://www.dlr.de/mars">www.dlr.de/mars</a> Source: contains modified Copernicus Sentinel data (2017), processed by ESA, CC BY- SA 3.0 IGO
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/dlr_de/33289823138">Musa Bay im Iran mit verästeltem Talnetzwerk</a>