Editing 2010: Odyssey Two (section)

===Discontinuities between ''2010'' and the other works===
Clarke acknowledged such inconsistencies in the Author's Note to ''2061'':<ref>Clarke, Arthur C. ''2061: Odyssey Three''. New York: Ballantine Books, 1988. Page ix</ref>
{{quote|Just as ''2010: Odyssey Two'' was not a direct sequel to ''2001: A Space Odyssey'', so this book is not a linear sequel to ''2010''. They must all be considered as variations on the same theme, involving many of the same characters and situations, but not necessarily happening in the [[parallel universe (fiction)|same universe]]. Developments since 1964 make total consistency impossible, as the later stories incorporate discoveries and events that had not even taken place when the earlier books were written.}}

* The second half of the novel ''2001: A Space Odyssey'' takes place around Saturn, with the Monolith embedded in the surface of the Saturnian moon Iapetus. The novel ''2010'' follows the continuity of the film ''2001'', which places the Monolith and ''Discovery'' in orbit between Jupiter and the Jovian moon Io.
* When Dave Bowman recalls the events of ''2001'' in the ''2010'' novel, he remembers the incident of chasing after Frank Poole's corpse in a pod without his helmet, and then entering the ''Discovery'' through the emergency airlock. However, this incident only occurred in the ''2001'' film. In the ''2001'' novel, Bowman remains in the ship and HAL attempts to kill him by opening all of the pod bay doors.
* In the novel ''2001,'' Dave Bowman says "Oh my God—it's full of stars!" during his encounter with the monolith.  In the novel ''2010,'' characters quote Bowman slightly differently as saying "My God—it's full of stars!" in his last transmission.  In the film version of ''2001,'' Dave Bowman is not shown speaking any words as he leaves ''Discovery'' and enters the monolith.  However, the film version of ''2010'' includes a recording of Bowman saying "My God—it's full of stars!" as if it had occurred in the ''2001'' film.
* The ''2001'' novel describes Dave Bowman's transformation into the Star-Child and his return to Earth.  The ''2010'' novel repeats this part of the story, abbreviating it in some ways, expanding it in others, and occasionally changing some details.  For example, despite the scenes in the ''2001'' film, there is no mention in the ''2001'' novel of Bowman growing old before regressing to a child. However, the ''2010'' novel aligns with the film by restating that Bowman dreamt that he grew old when the entity entered his mind (despite the ''2001'' novel stating he did not dream).  As another example, the ''2001'' novel says the Star-Child chooses not to use the Star Gate to return to the [[Solar System]], but the ''2010'' novel restates that he does use the Star Gate (which allows the ''Leonov'' to witness his arrival).
* In all of the ''Space Odyssey'' novels and the film version of ''2010'', HAL's instructor is named Dr. Chandra; in the film ''[[2001: A Space Odyssey (film)|2001: A Space Odyssey]]'', it is Mr. Langley.<ref name=WIRED9>{{cite magazine|last=Alfred|first=Randy|title=Jan. 12, 1992 or 1997: HAL of a Computer|url=https://www.wired.com/science/discoveries/news/2009/01/dayintech_0112|magazine=WIRED|access-date=16 March 2014|date=12 January 2009}}</ref><ref name=Ager14>{{cite web|last=Ager|first=Rob|title=The Technology Trap|url=http://www.collativelearning.com/2001%20chapter%208.html|work=Kubrick: and beyond the cinema frame|publisher=Collative Learning|access-date=16 March 2014|year=2008}}</ref>
* The events of ''[[3001: The Final Odyssey]]'', the fourth and final novel in the Space Odyssey series, make the epilogue of this novel impossible, or at least unlikely. In ''3001'' the monoliths become infected with a series of computer viruses (through [[software emulation]]) and disappear from the [[Solar System]]. It is feasible, though, that the monolith network is able to purge itself of the viruses and return to Sol and Lucifer prior to the year 20,001, and avoid another human-sourced infection.
* The film version of ''2010'' is a largely faithful adaptation of the ''2010'' novel. The major differences are that the film eliminates the Chinese spacecraft from the plot, places the United States and the Soviet Union at the brink of war, has a crewmember killed by the monolith when he approaches it in a pod, and expands Bowman's final message protecting Europa to include a directive to work together in peace.