We’ve covered networking on our home planet. But what happens when we send signals where no man has gone before?
Space networking is two-way communication between base stations on Earth, and unmanned space probes, planetary rovers, orbital satellites or manned spacecraft. These radio signals bring back messages, images and scientific discoveries. Someday they’ll be used to communicate between colonies on Earth and the moon or Mars.
Of course, we can’t just “call” Mars. Networking in outer space is vastly different from what we experience on Earth.
Communications travel at the speed of light. This means that it can take 20 minutes or more for a radio signal to reach a Martian planetary rover. It’s like going back to dial-up.