Oumuamua wasn't just falling, is the interesting thing about it. For Voyager probes I guess one could argue are falling most of the time, but specifically on th

Oumuamua wasn't just falling, is the interesting thing about it. For Voyager probes I guess one could argue are falling most of the time, but specifically on this topic, comets are not always only acted upon by environmental forces. Hmm actually isn't that characteristic of a comet, it being icey and having a "tail" of exhaust gas? But then Oumuamua's acceleration could iirc not be explained by that exhaust, so it's even more than just that. Of course that doesn't make it a space ship, it (presumably) lacks controls for one, but it does mean that comets are by definition not falling, and specifically the objects this project will be looking for might be doing even more than just venting under influence of heat.