An essential piece of infrastructure that permits communication between Earth and far off spacecraft is the Deep Space Network DSN . Reliable and secure communication is now crucial due to the fast expansion of interplanetary missions and rising data demands. The DSN s design, operating principles, communication technologies, tools, security issues, and potential developments are all thoroughly reviewed in this article. In order to increase effectiveness and security in deep space communications, the study spotlights cutting edge methods including artificial intelligence, deep learning, and sophisticated encryption. Deep Space Network DSN , Optical Communication, Secure Communication. 37-42 Issue-4 Volume-10 Dr. Rishi Kumar Sharma | Dev Sharan | Ayush Prasad | Anup Kumar