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Robert Walker

There are plans to send probes to other stars. So you can communicate in principle from spacecraft light years away. They don’t even need to be particularly huge. One idea, project Dragonfly, is to send a a swarm of small satellites which combine together to beam a signal back to Earth using sunlight from the target star as a power source.

Artist’s impression of a swarm of small satellites beaming a signal back to Earth.

Project Dragonfly: The case for small, laser-propelled, distributed probes

About the Author

Robert Walker

Robert Walker

Writer of articles on Mars and Space issues - Software Developer of Tune Smithy, Bounce Metronome etc.
Studied at Wolfson College, Oxford
Lives in Isle of Mull
4.8m answer views110.3k this month
Top Writer2017, 2016, and 2015
Published WriterHuffPost, Slate, and 4 more