The real question is Am I able to Write in Multiple Genres?
Ultimately it is your audience that determines the answer to that. However, it is possible that you could end up with a different audience for each genre. In fact, I’d say that is likely that your audiences will change from genre to genre.
Breaking into a new genre (for you) can also be tough. In my case, my primary focus is writing good fiction no matter what the genre. Getting people to like my books is more a matter of marketing than anything else.
In the game of writing you control the game. You have little control over sales, but you have great control over the writing and publishing of your book. And there are ways and means of marketing your book available. If you have all the talent in the world and all the skills but never seize the opportunity you are guaranteeing failure. Permanent failure. On the other hand you have unlimited opportunity available to you every day!
Virgin Galactic and SpaceX (both of which are in the book) are private pioneers in Space travel. But they are not the only ones. Space research continues on and before the end of President Trump’s first term in office I expect both companies and maybe a few more to have great success in Space.