Replies

To: IronJack

Some would come from comet and comet fragments which are bound to have smacked into the moon over the years.

17 posted on 08/22/2018 3:40:37 PM PDT by Kartographer ("We mutually pledge to each other our lives, our fortunes and our sacred honor.")

To: Kartographer

In any measurable amount?

19 posted on 08/22/2018 4:46:31 PM PDT by IronJack

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