What is space communication?

The receiving, sending and processing of information using space as a medium is called space communication. The information is sent in the form of sound waves. To send the information, electromagnetic wave is used as a carrier. The electromagnetic wave is of very high frequency. The resultant wave after superimposing is called as modulated wave. This modulated wave has the capability to propagate into space with the velocity same as that of velocity of light. With this process we can transfer signals to long intervals within very small time intervals. Electromagnetic waves can propagate because the earth’s atmosphere helps a lot to travel these waves on the earth’s surface.