A lot has changed since 1984, when this book was published. Given that, I found this book to be a historical curiosity, reflecting how the topic was viewed at the time, and how things have turned out since then.
There is a section on the Hubble Space Telescope, although they call it the "Space Telescope" (not sure why, since it was renamed from "Large Space Telescope" to HST in 1983). Of course they predict it launching in 1985 or 1986, when it ended up being delayed until 1990. And they couldn't predict the problems with the mirror, the successful servicing missions, and the overall stunning achievements of its observations over the years.
It was interesting to read about the satellite communications infrastructure that was already present, well before the internet. Other things haven't changed much, like the search for another planet outside the orbit of Pluto.
The book isn't very detailed. It gives more of an overview of a lot of topics, from computations done by ground-based telescope, to the space shuttle computer. It's hard to tell whether it was an advanced or beginner book at the time, but today it certainly seems to only have basic explanations and overviews.