I don't see how anything substantive has changed vis-a-vis space. There are some hard sci-fi recently, like the Expanse, that tackle a more realistic space exp

I don't see how anything substantive has changed vis-a-vis space. There are some hard sci-fi recently, like the Expanse, that tackle a more realistic space expansion. But fundamentally nothing has changed tech-wise in space technology since chemical rockets, at least not for people-sized space-endeavours.