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Originally posted by captiva
Please excuse my stupidity when asking this question? Why is it that the moon is absolutly pitted with craters when the earth does not look like that?
Surely so many meteor, asteroid or whatever hits on the moon, makes it logical that through the ages the earth too should look like that?
To a layman it looks like the moon has come from elsewhere? What am I missing?
Originally posted by Phage
reply to post by notreallyalive
There are not thousands of hours of video. These are photographs. The photographs (film) were taken by the Lunar Orbiters, processed on the Orbiters, scanned on the Orbiters, and transmitted to Earth. The images were transmitted as very high quality analog video. This is what is recorded on the tapes.
Each Orbiter had a limited amount of film: Mission I took 204 photos, Mission II took 211 photos, Mission III took 211 photos, Mission IV took 172 photos, Mission V took 211 photos. A total of 1009 photos. Not all that many. The photos were transmitted back to Earth as sections called "framelets". Out of a total of 3,166 of these framelets, 111 were not "read out" (scanned). Since they were not scanned, they could not be transmitted. All of the useable photos were printed.
Since the framelets which were not read out were not transmitted they are not contained on the video tapes which are being digitized.
You can read about the entire process of how the photos were made and transmitted here;