Some people at NASA are looking for the tapes to help them plan for future missions. They believe the Apollo 11 tapes were sent for storage at the U.S. National Archives in 1970, but by 1984 all the Apollo 11 tapes had been returned to the Goddard Space Flight Center. The tapes may have been stored rather than re-used, and efforts to determine where they were stored are ongoing. Goddard was storing 35,000 new tapes per year in 1967, even before the lunar landings.