>I think it's more likely that an alien probe - assuming there are aliens and they fly probes - would be the size of a cubesat
Or maybe the size of a sub-atomic particle, as in the sci-fi Novel 'The 3 body problem'.
Or maybe the size of a sub-atomic particle, as in the sci-fi Novel 'The 3 body problem'.
Time to quit my job at the LHC and be a baker.