(24th century - 25th century - 26th century - more centuries)

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The 25th century (Gregorian Calendar) comprises the years 2401-2500.

Astronomical predictions for the 25th century

• Belgian astronomer Jean Meeus asserts that the orbits of all nine planets will be within the same 90% arc of the solar system on 6 May, 2492 . The last time this is believed to have occurred was on 1 February, 949.

Science fiction set in the 25th century

• Buck Rogers (c. 2419 - original; 2491 - 1970s TV series)
• Starcraft begins in the year 2499