Transverse aeolian ridges
Videos
Transverse aeolian ridges are visually bright features commonly found in topographic depressions on Mars. These small-scale and relict bedforms were first seen in narrow-angle images from the Mars Orb
Close-up of yardangs, as seen by HiRISE under HiWish program. Arrows point to sand ridges that are called "transverse aeolian ridges" (TAR's).
Close, color view of unusual transverse aeolian ridges, TAR's, as seen by HiRISE under HiWish program These features may have had variable local winds to make the wavy tops.
Close view of TAR's with waves, as seen by HiRISE under HiWish program
Close, color view of TAR's in a channel,as seen by HiRISE under HiWish program Only part of the image is in color because HiRISE only takes a 1 km wide color strip.
Mars Global Surveyor
Videos
Mars Global Surveyor was an American robotic space probe developed by NASA's Jet Propulsion Laboratory. It was launched on November 7, 1996, and collected data in orbit around Mars from 1997 to 2006.
Mars Express Seen by Mars Global Surveyor
The Mars Orbiter Camera
The Phobos monolith (right of center) as taken by MGS (MOC Image 55103) in 1998