What are the most popular science fiction books of all time?

Definitely 'Starship Troopers' by Robert A. Heinlein. It has great action scenes in a military science - fiction setting and also delves into themes like citizenship and duty. 'Snow Crash' by Neal Stephenson is also popular. It's set in a near - future where virtual reality is a big part of life and has a really engaging and fast - paced plot. Also, 'The War of the Worlds' by H.G. Wells is a classic that has influenced many other science - fiction works with its story of alien invasion.

Definitely 'Frankenstein' by Mary Shelley. It's often considered the first science fiction novel, exploring the creation of life through scientific means and the moral implications. 'Ender's Game' by Orson Scott Card is also influential. It delves into the training of children for war in a futuristic setting. And 'Snow Crash' by Neal Stephenson, which looks at a future where the virtual and physical worlds are intertwined.

One of the most popular is 'The Time Machine'. It's been around for a long time and is widely known. 'A Wrinkle in Time' is also very popular, especially among younger readers. It has a great story with interesting characters.

One of the most popular is 'The Time Machine' by H.G. Wells. It's a pioneer in the time - travel genre. Then there's 'Back to the Future' which started as a movie but also has novelizations. The story of Marty McFly traveling through time in a DeLorean has captured the imagination of many.

Well, 'A Connecticut Yankee in King Arthur's Court' is quite popular. It combines time travel with the well - known Arthurian legend, which makes for a really fun and unique read. Also, 'Doomsday Book' has a big following. People are drawn to the idea of a time - traveling historian and the detailed look at the Middle Ages that it offers. It also has some great character development.

One of the most popular fiction books of all time is 'Pride and Prejudice' by Jane Austen. It's loved for its complex characters, especially Elizabeth Bennet, and Austen's sharp social commentary. Another is 'To Kill a Mockingbird' by Harper Lee. It tackles important themes like racism and injustice through the eyes of Scout Finch. And '1984' by George Orwell is also very popular. It warns about the dangers of totalitarianism with its dystopian vision.

Some of the most popular ones are 'Star Wars'. It created a vast universe full of different species, spaceships, and the Force, which is a supernatural element. Another is 'The Matrix'. It combines science fiction concepts like artificial intelligence taking over the world with the idea of humans living in a simulated reality, which has a sort of supernatural feel to it. And 'Harry Potter' is also very popular. It's filled with magic, wizards, and magical creatures, which are all supernatural elements in a fictional world.

Some of the most popular ones are 'The Lord of the Rings' by J.R.R. Tolkien. It created a vast and immersive fantasy world with complex characters and an epic story of good versus evil. Another is '1984' by George Orwell, which is a science fiction classic that warns about a totalitarian future. 'Dune' by Frank Herbert is also highly popular, with its detailed world - building and exploration of politics, religion, and ecology in a science - fiction setting.

Well, 'The Time Machine' is quite popular. It has been around for a long time and has influenced a lot of other time - travel stories. Its simple yet profound ideas about time and human evolution make it a favorite.

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.