Mark all craters
Show me how
Instructions: Please click on four points around the rim of each crater. When finished, see below.
Be sure to scroll down and mark the whole image.
Image credit: NASA/JPL/MSSS.
This image is lit from the lower right. Craters may look like they are convex.
If you're curious, you can see where and how this image was takenPreload next image (What's this?)
Show the craters I’ve marked.