Science Fiction isn’t often taken seriously by Hollywood, thanks to movies like Star Wars. However, some of the best sci-fi is the type that takes a hardcore approach to the world it’s set in, basing it on a realistic approach. It’s called Hard Sci-Fi, and these are the best Hard Sci-Fi movies of all time.

1. Interstellar.
2. Apollo 13
3. 2001
4. The Martian.
5. Gravity.
6. Solaris.
7. Moon.
8. Europa Report