Book ideas that have been floating around in my head for some time

Like all underachieving zoomers I constantly have a thousand ideas in my head that will never come to fruition so here they are.

The first one is about a ghost that travels through space. I was thinking about the fact that a ghost is essentially immortal so they’ll stick around long after The Earth has been eaten by the sun. You could have the ghost look around at space and eventually find something special enough that they can finally pass on peacefully.

The second one is a book about humans discovering alien races. It is then discovered that all planets had Jesus show up at some point. I don’t want this book to be a preachy Christian book, rather I want it to be a look at how Christianity could have developed had, for example, everyone believed Jesus instantly. I want to book to be a series of interviews conducted by an impartial and agnostic individual. I don’t think the book even has to be about Christianity specifically but I just want to stick to what I know.

The last one might have already been done. I want to tell the story of a town through a few newspaper articles. This one is a more recent thought of mine and is not quite as fleshed out but I think it has potential. I’m pretty sure this sort of structure has been done before but I think it could still make a very engrossing book. If you do the entire news paper, obituaries, ads and all the other stuff I think you could make quite a few compelling threads beyond the main one. But it might be too difficult so maybe not.