10-22-2015, 04:10 PM
So if this advanced xenosophonts really exist around this star and if they decided to investigate the galaxy and send self-replicating von Neumann probes to the nearest stars in the year 535 CE. How long would it take for one of the copies of these original probes to arrive here?
"Hydrogen is a light, odorless gas, which, given enough time, turns into people." -- Edward Robert Harrison