Worldwide Radio Coverage的文章,进一步充实了卫星通信的理论。几十年后,美国海军进行了一个名为“月球中继通信(英语:CommunicationMoonRelay)”的计划。该计划使用月球作为天然的通信卫星,旨在提供一种安全可靠的无线电通信。 世界上第一颗人造地球卫星是苏联的史普尼克1號
released as a single in 1971, followed by "Join Together" in June 1972 and "Relay" in November. "Pure and Easy", "Put The Money Down" and "Too Much of Anything"