Echo 1 Passive Communications Satellite by rlkitterman on DeviantArt
Launched in 1960, Echo 1 was designed to explore the new field of communications via space. Its design was remarkably simple: Essentially a large balloon, measuring 30 meters (100 feet) across, the
From Telstar, a new age of telecommunications (pictures) - CNET
Project Echo - Wikipedia
Echo 1 satellite hi-res stock photography and images - Alamy
Project Echo | NASA
1950s echo satellite hi-res stock photography and images - Alamy
Communications satellites
Echo 1 Communications Satellite | National Air and Space Museum
NASA - NSSDCA - Spacecraft - Details
August 1960 - Project Echo Launched | NASA
Satellite communication - Development of satellite communication | Britannica
The Balloon Satellites of Project Echo | Amusing Planet
Echo 1 Communications Satellite | National Air and Space Museum
Echo | satellite | Britannica
Communications Satellite, Echo 1 | Launched in 1960, Echo 1 … | Flickr
A Look Back at NASA's Historic Echo-1 Satellite Launch
Echo Launch Adapter
Project Echo - Wikipedia
Communications Satellite, Echo 1 | National Air and Space Museum
Spacewatch: Nasa's Echo 1 anniversary | Science | The Guardian
The Echo 1 Satellite by Bettmann
