I think 'The Martian' was extremely popular. It was widely praised for its scientific accuracy and the engaging performance of Matt Damon. People were really drawn to the idea of a man alone on Mars trying to find a way back home.
Probably 'Star Wars'. It has a huge fan base all over the world. The epic space battles, the Force, and the diverse characters are really appealing.
'Gateway' is also very popular. Its exploration of human nature in the face of the unknown, along with the unique setting of the alien space station, has attracted a large number of readers. People are drawn to the mystery of the ships and the potential for discovery, as well as the well - developed characters.
Among the popular ones is 'Starship Troopers'. It's a military science fiction novel that has an exciting story. The audiobook has great sound effects and a good narrator that really makes you feel like you're in the middle of the action, following the soldiers in their battles against the alien bugs.
'Wool' by Hugh Howey was quite popular too. It's set in a post - apocalyptic silo, and the mystery and the characters' struggles within that confined space were really engaging for readers. The story gradually unfolds, revealing more about the world outside the silo as it progresses, which kept readers hooked.
I'm not sure which ones are the most popular exactly, but 'Snow Crash' by Neal Stephenson is often highly regarded. It's set in a future where the world has been transformed by a new form of technology and virtual reality, and it has a really unique and engaging plot.
I'm not entirely sure which ones were the most popular, but 'Doomsday Book' was widely talked about. It had an interesting premise of time - traveling historians.
Another popular one could be 'The Uplift War'. It was part of a well - known series and had a lot of fans who were into the idea of the uplift concept, where lower species are 'uplifted' to sentience by higher ones. It had exciting battles and interesting alien species interactions.
Another popular one might be 'The Uplift War' by David Brin. It's part of a series and in 1989 it was attracting a lot of attention for its unique take on the evolution of intelligent species and the politics between them.
Well, 'Neon Genesis Evangelion' is extremely popular. It has a unique take on mecha - based science fiction, with complex characters and a deep, often philosophical story that delves into the nature of humanity and existence in a world under threat from mysterious beings.
Some of the most popular science fiction works include 'Dune' by Frank Herbert. It has a complex and immersive universe with unique politics, religions, and technologies. Another popular one is '1984' by George Orwell. Although it's more of a dystopian science fiction, it has had a huge impact on how we view society and totalitarian control. Also, 'Star Wars' is extremely popular. It has a vast galaxy filled with different species, epic battles, and a story of good vs. evil that has captured the hearts of many around the world.