Millennium:	3rd millennium
Centuries:	24th century · 25th century · 26th century
Decades:	2400s 2410s 2420s 2430s 2440s 2450s 2460s 2470s 2480s 2490s

The 25th century of the anno Domini (common) era will span the years 2401–2500 of the Gregorian calendar.

Astronomical predictions for the 25th century

• December 30, 2419: At 01:38 UTC Venus will occult Uranus.
• 2426: Pluto's second orbit, since its discovery.
• 2456: Triple conjunction Mars-Jupiter.
• August 29, 2478: At 23:11 UTC Mars will occult Jupiter.
• June 12, 2490: Transit of Venus.
• May 6, 2492: Belgian astronomer Jean Meeus asserts that the orbits of all eight planets and Pluto will be within the same 90° arc of the Solar System. The last time this is believed to have occurred was on February 1, 949^[1].
• June 10, 2498: Transit of Venus.

Science fiction set in the 25th century

• The events of the Sega Mega Drive strategy game Vixen 357 and the Super Nintendo Entertainment System strategy game War 2410 take place during this century.
• The events of the 2005 science fiction film Æon Flux is set in the year 2415.
• Buck Rogers (c. 2419 — original; 2491 — 1970s TV series).
  • Additionally, Duck Dodgers is set midway through the century.
• Louis-Sébastien Mercier's L'An 2440 depicts a utopia set in that year; the standard English translation rounds to 2500.
• The events of the original computer game in the StarCraft series begin on December 12, 2499, crossing over into 2500.
• Jason X (although it begins in an early year of the 21st century, most of the film is set in the year 2455).
• The video games TimeSplitters 2 and TimeSplitters: Future Perfect take place mainly in 2401.
• The events of Mega Man ZX take place on the 25th century.
• The computer game Fragile Allegiance begins on May 25, 2496.
• All of the characters from the television series Firefly and feature film Serenity are born in the latter part of the 25th century.
• In the series Magnus, Robot Fighter, by Russ Manning, in 2500 a robotic repair ship crashes on a planet around the star malev and suffers severe damage. This leads to the creation of Malev-6, a malevolent computer that fills the entire planet.
• In the film Happy Accidents, Vincent D'Onofrio's character Sam Deed claims to be from the year 2470.
• In David Brin's Uplift Universe, the events triggered by Streaker's discovery of the derelict fleet happen in the 25th century. Startide Rising and The Uplift War begin in 2489.
• The Silverhawks children's television series takes place in the 25th century.
• DC Comics superhero Booster Gold was born in the 25th century.
• In the Earthsiege universe, the first Cybrid known as Prometheus is activated on November 29, 2471.
• In the TV series Futurama episode When Aliens Attack, Professor Farnsworth says that videotapes were destroyed by the Second Coming of Christ, which took place in 2443.
• In the Australian TV series The Girl from Tomorrow Tulista visits the year 2500 and comes back with Silverthorn who is from the year 2500.
• The second series of The Girl From Tomorrow, The Girl from Tomorrow Part II: Tomorrow's End takes place primarily in the year 2500. It starts out in the year 3000, with some scenes in the year 1990.
• Part of the final episode of Star Trek: Voyager, Endgame takes place in the year 2404. The future captain Kathryn Janeway also brought technology from that year back to the year 2378.
• Part of the Halo Series takes place in the 25th Century, including when the UNSC ship Spirit of Fire was launched.
• The events of Star Ocean: The Second Story takes place in the year 2452.

References

1. ^ Site: SkyAlignments. (non accessible)

Decades and years