Found 23 results for "Interplanetary communication"
by Lt. Colonel Wendelle C. Stevens, Timothy Green Beckley
by Symposium on Communications Satellites (1961 London, England)
by Carl Sagan
By human standards it could not possibly have been artificial: It was the size of a world.
by Erich von Däniken, Javaid Toosy
Is it conceivable that we world citizens of the twentieth century are not the only living beings of our kind in the cosm...
by Ian Graham, Ian S. Graham
People have gazed up at the night sky for thousands of years and wondered what the countless wandering points of light w...