22nd century

Several terms redirect here. For other uses see: 22nd century (disambiguation), 2112 (disambiguation), 2150 (disambiguation), the song 2120 South Michigan Avenue, the Marvel Comics location Earth-2122, the video games Battlefield 2142, Earth 2140 and Earth 2160, or the short film 21-87.

Millennium:	3rd millennium
Centuries:	21st century 22nd century 23rd century
Decades:	2100s 2110s 2120s 2130s 2140s 2150s 2160s 2170s 2180s 2190s

The 22nd century is a century of the Common Era in accordance with the Gregorian calendar. It is the century following the current 21st century, beginning on January 1, 2101 and ending on December 31, 2200.

Technological predictions

• Work on cleaning up the site of the Oldbury Nuclear Power Station near Thornbury, South Gloucestershire, England, which was decommissioned on 29 February 2012, is scheduled to be complete between 2092 and 2101.
• According to the Discovery Channel documentary, Extreme Engineering, the Japanese proposed Shimizu Mega-City Pyramid could be complete by 2110.
• The One Hundred Year Study on Artificial Intelligence (AI100) initiated by Stanford University will be concluded in 2115.
• 2162 or later: The satellite Envisat, declared "dead" in 2012, is expected to deorbit and burn up in the atmosphere no earlier than 2162.
• By 2200, it is predicted that Earth will become a Type I civilization on the Kardashev scale, according to Nikolai Kardashev's extrapolation of 1% energy usage growth per year.

Social predictions

• 2160 – Some scientists believe there are people born in 2010 who may still be alive in 2160.
• According to the UN Population Bureau, life expectancy in 2200 will be around 100 for developed countries and the world population will be about 11 billion. However, the UN has warned that these projections could be invalidated by any change and progress in future life extension technology and discoveries, as well as changes in future birthrates.

Biological predictions

• By 2100, 12% (about 1250) of the bird species existing at the beginning of the twenty-first century are expected to be extinct or threatened with extinction.
• By 2100, emperor penguins could be pushed to the brink of extinction due to global climate change, according to a Woods Hole Oceanographic Institution study from January 2009. The study applied mathematical models to predict how the loss of sea ice from climate warming would affect an Antarctica colony of emperor penguins, they forecast a decline of 50% by the end of the century.

Calendric predictions

• On March 14, 2100 (which will be February 29, 2100 in the Julian calendar), the difference between the Julian calendar and the Gregorian calendar reaches 14 days. Since 14 is divisible by 7, this will be the first time in history since its inception that the Gregorian calendar will have the same day of the week for each day of the month for the whole year as the Julian calendar. This will last until February 28, 2200 of the Gregorian Calendar.
• 2100 will not be a leap year since it qualifies as a year that is divisible by 100, but not by 400.
• FAT file systems theoretically support dates up to December 31, 2107 (though officially only up to December 31, 2099).
• The Year type in MySQL supports dates up to December 31, 2155.
• March 17, 2160 – Unless changes are made as to when Easter can be observed, this particular March 17 will fall within Holy Week for the first time since 2008 and fall on the same day (Monday) as it did in that year, likely requiring the movement of the Feast of Saint Patrick's Day to another date.

Time capsules

• April 27, 2109 – A time capsule placed under the floor boards of the Old Queens Building at Rutgers University, in New Jersey, United States buried on April 27, 2009 is scheduled to be opened.
• September 19, 2110 – A time capsule at the Plaza de Armas in Santiago, Chile is intended to be opened on that date. It was buried in 2010.
• November 18, 2112 – The City of Beaumont, California in the United States will open their time capsule in honor of its Bi-Centennial.
• 2112 - A time capsule buried in Weavers Academy, Wellingborough, UK, will be opened after 100 years of being buried.
• 2132 – A time capsule on Rideau Street in Ottawa, Ontario, Canada is intended to be opened that year. It was buried in 1982.
• 2193: A time capsule at the York Civic Centre in Toronto, Ontario, Canada is intended to be opened that year. It was buried in 1997.

Astronomical predictions

Solar eclipses

• December 8, 2113 : Annular solar eclipse, (9 min 35 s), Solar Saros 134.
• June 3, 2114 : Total solar eclipse of 6 min 32 s, Solar Saros 139.
• December 19, 2131 : Annular solar eclipse, (10 min 14 s), saros 134.
• June 13, 2132 : Total solar eclipse of 6 min 55 s, saros 139.
• December 30, 2149 : Annular solar eclipse, (10 min 42 s), saros 134.
• June 25, 2150: Solar eclipse of 7 min 14 s, Solar Saros 139.
  Exceeding 7 minutes of totality, this will be the first time this has happened in 177 years; the last one occurred on June 30, 1973. when the Concorde prototype followed the totality spot during 73 minutes.
• January 10, 2168 : Annular solar eclipse, (10 min 55 s), saros 134.
• July 5, 2168 : Total solar eclipse of 7 min 26 s, saros 139.
• January 20, 2186 : Annular solar eclipse, (10 min 53 s), saros 134.
• Total solar eclipse of July 16, 2186 of 7 min 29 s (very close to the theoretical maximum), Saros 139, "crowning" this series.
  This is predicted to be the longest eclipse during the current 10,000 year period, from 4000 BC to 6000 AD (eclipse predictions by Fred Espenak, NASA/GSFC.DEPP).

Lunar eclipses

Main article: List of 22nd-century lunar eclipses

• June 9, 2123: Long-duration lunar eclipse of approximately 106.1 minutes.
• June 19, 2141: Long-duration lunar eclipse of about 106.1 minutes. This lunar eclipse is in the same Saros series (132) as the long lunar eclipse in 2123, and has an almost identical duration.

Triple conjunctions

• 2123: Triple conjunction of Mars–Jupiter.
• 2148: Triple conjunction Mars–Saturn.
• June–October 2169: Triple conjunction of Saturn, Uranus and Neptune.
• 2170: Triple conjunction Mars–Jupiter.
• 2185: Triple conjunction Mars–Saturn.
• 2187: Triple conjunction Mars–Saturn.

Transits and occultations

• December 11, 2117: Transit of Venus.
• September 14, 2123: At 15:28 UTC, Venus will occult Jupiter.
• December 8, 2125: Transit of Venus.
• July 29, 2126: At 16:08 UTC, Mercury will occult Mars.
• December 3, 2133: At 14:14 UTC, Mercury will occult Venus.
• September 2, 2197: Venus occults Spica.
  Last occultation of Spica by Venus was on November 10, 1783.
• December 24, 2197: Earth's Moon will occult Neptune.

Other phenomena

• 2100: Polaris appears furthest north. Polaris' maximum apparent declination (taking account of nutation and aberration) will be 0.4526° from the celestial north pole, on 24 March 2100.
• August, 2113: First time Pluto reaches aphelion since its discovery.
• 2114: Sedna will overtake Eris as the farthest currently known spheroid orbiting the Sun.
• March 10, 2130: At 07:32 UTC, Sun passes through solar system barycenter.
• 2134: Comet Halley will return to the inner solar system.
• 2135–2136: Halley´s comet will be at perihelion.
• August 5, 2150: Main-belt asteroid 78 Diana (~125 km in diameter) will pass about 0.003 AU (450,000 km; 280,000 mi) from Earth threatening asteroid (29075) 1950 DA and perturb 1950 DA's long-term trajectory.
• May 19, 2161: All eight planets are predicted to be on the same side of the sun, within 69 degrees.
• 2174: The second full orbit of Neptune around the Sun since its discovery in 1846.
• 2177: "First Plutonian anniversary" of the dwarf planet's discovery, given that Pluto's orbit is just under 248 Earth years.
• 2182: With an estimated probability of 0.07%, Apollo asteroid 1999 RQ₃₆ could hit the Earth.

See also

• 22nd century in fiction