| 释义 |
- Notable predictions and known events 2042 2045 2047 2049
- Fictional references
- References
{{Decadebox|204}}The 2040s (pronounced "twenty-forties") is a decade of the Gregorian calendar that will begin on January 1, 2040 and will end on December 31, 2049. Notable predictions and known events - Possible manned mission by NASA to Jupiter's moon, Callisto.[1]
2042- According to the United States Census Bureau, U.S. residents who identify themselves as being Hispanic or Latino, African American, Asian, Pacific Islander, and Native American will collectively outnumber those who identify as being white of non-Hispanic origin.[2]
2045- August 12: A total solar eclipse will take place in the United States, producing a path from California to Florida. Some parts of Florida are predicted to experience totality for six minutes, the longest in US history.
- Ray Kurzweil in The Singularity Is Near places the emergence of the technological singularity in 2045.
2047- July 1: Hong Kong's special administrative status ends. According to Chapter I, Article 5 of Hong Kong's Basic Law, "The socialist system and policies shall not be practised in the Hong Kong Special Administrative Region, and the previous capitalist system and way of life shall remain unchanged for 50 years." The Basic Law was adopted in 1997; those 50 years come to an end in 2047.
2049- December 20: Macau's special administrative status ends, similarly to Hong Kong's situation.
Fictional referencesReferences1. ^"High Power MPD Nuclear Electric Propulsion (NEP) for Artificial Gravity HOPE Missions to Callisto" trajectory.grc.nasa.gov
2. ^{{citation|first1=Jennifer M. |last1=Ortman |first2=Christine E. |last2=Guarneri |title=United States Population Projections: 2000 to 2050 |date=2009 |publisher=United States Census Bureau |location=United States of America |url=https://www.census.gov/population/projections/files/analytical-document09.pdf |type=PDF |work=2009 National Population Projections |accessdate=February 16, 2010 }}.
4 : 2040s|21st century|Decades in the future|Future timelines |