al worden was a great observer. he wanted to do it right. to absorb as much as he possibly can. he became one of the best observers. while he was on the apollo 15 mission, i asked him to look at a photograph. he described it nicely. he said there were volcanic eruptions. dark rock material. so this is additional, younger volcanic, they are darker looking. even rocco petrone from a distance pointed and came down to say "your student may have picked out a landing site." he knew exactly what it means. al worden discussing cinder cone looking things that we saw near flagstaff, arizona. this kind of thing where maybe it will be a push for one of the missions. it was the site for apollo mission 17. apollo command module observations were very important. in addition to the fact that we had cameras, one metric camera to take the mass of the moon, -- to good photographs of the moon, and one panoramic camera that took high-resolution pictures to see details down to a few meters of the surface of the moon. apollo 16 came. and this was the one place of