'Happy face' crater on Mars

http://www.esa.int/SPECIALS/Mars_Express/SEMMTFNFGLE_0.html

These images, taken by the High Resolution Stereo Camera (HRSC) on board ESA's Mars Express spacecraft, show the Galle Crater, an impact crater located on the eastern rim of the Argyre Planitia impact basin on Mars.

Is it just me or does the Happy Face not look quite as happy as
it used to:

http://antwrp.gsfc.nasa.gov/apod/ap990315.html

http://barsoom.msss.com/education/happy_face/happy_face.html

depends on lighting angle and viewing angle I guess.

Doug

No, I think Galle may actually be depressed. We should launch a mission to
drop a whole bunch of prozac into it, in a gesture of interplanetary good will.