The first pass of Echo 1, America's first communications satellite, over the Goldstone Tracking Station in Pasadena… https://www.rawpixel.com/image/440672/communications-satelliteFree Image from public domain licenseInflation Tests of the Echo 1 Satellite in Weeksville, N.C. Original from NASA . Digitally enhanced by rawpixel. https://www.rawpixel.com/image/418674/free-photo-image-silver-nasa-balloonFree Image from public domain license