Hi from Chile!
I am new to this. I wonder why these images of the Martian surface show no crates at all. Are they filtered out?
Regards - David
There are few images of craters and things you might be more familiar when you think of images of Mars, because we're looking at the South Pole of Mars to map seasonal fans and right now a very small patch dubbed Manhattan.
by Kitharode moderator
Hi David. In addition to Meg's links above, you might find this one useful: http://www.nasa.gov/images/content/171411main_pia09224-thick-annot-516.jpg
The south polar layered deposits (SPLD) can be around 3km thick, so although there probably are craters around the south pole we're not gonna see them because they're buried.