https://peertube.dngr.us/videos/watch/d0141b7f-5d36-4796-81d7-fce84794d7fe National Archives description This film discusses what had been learned about the planet Mars from Earth-based telescopes, observations from the fly-by Mariner spacecraft, and through the recent Viking landing and orbiter experiments. This film also explains the discoveries and new mysteries relating to the planet most like Earth in our solar system." National Archives Identifier: 649457 As always, any error or typo is mine and if you enjoy my uploads or if you intend to make $ or otherwise profit from these files, please consider making a donation to a veteran's charity of your choice and/or Archive.org itself. Thanks. 😃 Date: 1979 Mirrored from Internet Archive: https://archive.org/details/ARC-649457 Wed, 15 Jul 2026 07:33:07 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/ec5edb1e-3795-4978-be4f-c67e98fbc992.png https://peertube.dngr.us/videos/watch/d0141b7f-5d36-4796-81d7-fce84794d7fe All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.