Star Trek, as science fiction, died with Gene Roddenberry. Don't get me wrong, DS9 was powerful and my favorite series of the franchise, in terms of entertainment value. But, too often, the writers would simply insert [TECH] into the script where they required deus ex machina (this is true). There was almost no pursuit of where an idea would lead, or how a deeper understanding of the universe could improve (or imperil) our existence.
Excellent examples of contemporary genuine science fiction (GSF) include: