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Baxter, Stephen. Voyage. HarperPrism 1997.
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Baxter, Stephen. Voyage. Translated to the German as Mission Ares. Heyne 1997.
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Baxter, Stephen. Voyage. Translated to the French as Voyage, J'ai lu 1999 (vol. 1).
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Baxter, Stephen. Voyage. HarperCollins 2015.

Baxter, Stephen. Voyage
Divergence: 1963 CE
What if: Although badly wounded and out of office since 1964, John F. Kennedy was alive in 1969 to see the first moon landing.
Summary: Kennedy's urging prompts the Nixon administration to direct NASA's next efforts toward a Mars landing, which take place in 1986.
Series note: The Baxter and Bradshaw's story "Prospero One" is also set in this timeline.
Published: HarperCollins UK 1996 (0002246163); HarperPrism 1997 (0061052582BUY); HarperCollins/Voyager 1997 (0006480373BUY); HarperPaperbacks 1997 (0061057088BUY); and Harper/Voyager 2015 (0008134510BUY).
Original in: English.
Translation: French by Guy Abadia as Voyage, J'ai lu 1999 (vol. 1, 2277260150; vol. 2, 2277260169), 2003 (vol. 1, 2290325414; vol. 2, 2290325422).
Translation: German as Mission Ares, Heyne 1998 (3453148681).
Awards: Winner: 1996 Sidewise Award for best long-form alternate history. Nominee: 1997 Arthur C. Clarke Award.

Baxter, Stephen, and Simon Bradshaw. "Prospero One"
Divergence: 1963 CE
Summary: The single flight of Britain's very brief space program.
Series note: Set in the same timeline as Baxter's Voyage.
Published: In Interzone #112 (October 1996).
Web link: The Baxterium