I'm pretty certain this is a "no", but I'm a biologist, not a space scientist, and I'm attempting to answer this question over on Biology.SE - basically, if we launched a (very slow) craft/object today towards Alpha Centauri, assuming a 65,000yr travel time, are there any organisms that could survive the trip?
To answer the "how many attempts would it take" part, I'm assuming that there is literally no mechanism that would still retain any power or remain working, and therefore be capable of managing deceleration upon arrival, locating a planet and landing safely - so we'd basically be throwing darts at a very small dartboard very far away. Is this correct?
(I couldn't find any related questions except this one, which was closed without an answer and sounds like was asking about human-crewed ships anyway, and this one, which is much closer but the answers are mostly either about completely passive satellites or not actually answers, but speculation about some of the possible challenges).
I basically want to throw a small rock very slowly at Alpha Centauri, which I assume we have the technology to do even if it takes forever and almost certainly misses.
I'm assuming significant issues would include vacuum welding and micrometeorite bombardment, as well as power sources, demagnetisation, etc.