Space Rocket History #385 – Copernicus (OAO-3), SAS-2, Venera 8, Luna 20 & 21, and Explorer 49
Space Rocket History Podcast - Podcast tekijän mukaan Michael Annis - Perjantaisin
Once its antennas were deployed, Explorer 49 was the largest human-made object to orbit the Moon as of 2022.
