[LVAS] Sun rays in moon crater

[David Blanchette]

I don't remember where or when this occurred, but I think it was a 
Red Rocks event, when we noticed an odd lighting effect on the 
moon.  It took a little while to realize what it was, but I finally 
decided that it was sunlight coming through a crack in the crater wall.

I never looked into it, but it's a known phenomenon:

http://antwrp.gsfc.nasa.gov/apod/ap100327.html

-- David