Remote Sensing - Dune Worlds: How Windblown Sand Shapes Planetary Landscapes - page 208

Fig. 18.3 The closest thing we
have to an aerial photograph of
dunes on Mars. This image was
taken (as this topic was being
completed) by the down-looking
MARDI camera on the Mars
Science laboratory Curiosity,
shortly after its parachute
deployed. The circular object at
left is MSL's heatshield falling
away: in the background are dark
sand dunes on the floor of the
Gale crater. MSL landed a couple
of minutes after this image was
taken. Photo Malin Space
Science Systems/NASA/JPL
Fig. 18.4 Gemini 4 handheld
film camera image of remarkably
straight and regular linear dunes
in the Rub' Al Khali in Saudi
Arabia. NASA image s65-34765.
Image Science and Analysis
Laboratory, NASA-Johnson
Space Center http://eol.jsc.nasa.
gov