Topography and the wind
A piece of Mars: Everybody else loves this image because it shows an inverted channel — the remains of a stream that once flowed through this area. But I love it because the little dunes were also formed by a flow. The flow of the wind, that is. Here the wind is deflected by the former streambed, forming dunes that moved in the same direction (lower right to upper left). (HiRISE ESP_030609_1550, NASA/JPL/University of Arizona)
3 Comments
These look like the formations that gave rise to the ‘Glass Worms’ phenomenon of some years ago. It’s nice to see a close-up, to see what they really are!
I did try to tell them…
This is really beautiful. Thanks for sharing.