https://peertube.dngr.us/videos/watch/02755bf7-b94d-4cc3-8d8b-b216553f3ec4 This video explains the system of mapping terrain made more accurate with NASA technology. Released Jan. 1991. Mirrored from YouTube: https://youtu.be/MTyMgqOgjkY Original channel: NASA STI Program Wed, 15 Jul 2026 12:52:21 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/02755bf7-b94d-4cc3-8d8b-b216553f3ec4 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.