Walls of Noctus Labyrinthus: PSP_001404_1720 (slightly enhanced and adjusted by me)Also, here's a very interesting webcast/lecture given by Steve Squyres on his recent visit to the OU, this guy knows his stuff... his book is good as well :-)
Terra Sirenum Gullied Crater: portion of HiRISE Image TRA_000878_1410 (color has been enhanced)
Alluvial Fans in Mojave Crater: Highlighted portion of HiRISE Image PSP_001415_1875
Channels on Dunes in Russell Crater from HiRISE Image PSP_001440_1255
Boulder tracks: Highlighted Portion of HiRISE Image PSP_001377_1685
Highlighted Portion of HiRISE Image PSP_001377_1685
All images from here.
HiRISE image PSP_001420_2045 shows a narrow trough running down the center of a valley that lies between two hills in the Tartarus Colles region of Mars.
Slightly better seeing tonight, compared to the previous few weeks. However, there is still a lot of jetstream interference causing the image to go out of focus. I also found after taking these images that my collimation was a bit out, but, by the time I fixed it, the seeing was really bad, and my corrector plate was dewed over. So I called it a day... at 5:30am... sleeeeeep :-)
The impact of an asteroid or comet several hundred million years ago, according to scientists, left scars in the landscape that are still visible in this International Space Station/Expedition 12 picture of an area in the Sahara Desert of northern Chad.