If you're interested in watching "2001: A Space Odyssey", it's available on various streaming platforms, such as Amazon Prime Video, Apple TV, Google Play, and Vudu, among others. You can also purchase a DVD or Blu-ray copy of the film.
Additionally, the year 2021 saw a real-world "space odyssey" when Russia launched a crew to the International Space Station to film The Challenge a space odyssey filmyzilla 2021