They would have DNA samples (viable?) of several astronauts from
the late 20th Century who were directly involved in the first exploration
of the Moon.
I may be wrong, but I believe these are photographs of those very
bags on the Sea of Tranquility from the Apollo 11 mission:
Judging from some of these photos, the bag is almost right under the
LM descent stage engine nozzle. So maybe the whole issue is moot,
at least with Apollo 11.
I found these photos from this great Web site on Apollo:
http://www.apolloarchive.com/apollo_gallery.html
Space/Science » in reply to re: The Moon may have something Mars lacks.
One benefit to future historians/paleobiologists