Mixed signals

While I’m very excited about the prospect of sending a nanoprobe to a ‘nearby’ star (Cutting Edge, April), I’m wondering what provision will need to be in place to receive the probe’s signal when it eventually trickles back to Earth. I assume the use of the word ‘nano’ excludes the option of taking a crate of car batteries along; has anyone costed hollowing out the Moon and painting the inside white? Andrew Hilton, Halewood How to send the data back is on the list of the StarShot project’s research priorities,

Andrew. You never know, maybe they will settle on turning the Moon into a giant receiver dish. – Ed