And by aliens I mean, outer space creatures and UFO. For whatever reason all UFO sighting footage looks either fake or like recorded with a Casio keyboard. And I find hard to believe we don’t have any decent footage of them with all the surveillance and technology we have now.
Edit: 🍿
Iirc a nuclear rocket would cut travel time down to centuries between stellar systems. While cruising the galaxy in one go might not be feasible, travelling to a nearby system would be.
Honestly even centuries is like… a crazy timescale for space travel. There’s so many things that can go wrong and there’s nothing saving you in space. Generation ships is a cool idea but it is that - just an idea, at this point.