I must have watched the movie no fewer than a dozen times, so I definitely appreciated the extra details the novel provided. The science bits were just the cherry on top.

Having said that, it is not my favorite one by Weir, that spot is reserved for [b:Project Hail Mary|54493401|Project Hail Mary|Andy Weir|https://i.gr-assets.com/images/S/compressed.photo.goodreads.com/books/1597695864l/54493401._SY75_.jpg|79106958].

Now excuse me while I go watch the movie again :)