2070s

The 2070s (pronounced "twenty-seventies") is a decade of the Gregorian calendar that will begin on January 1, 2070, and will end on December 31, 2079.

Notable predictions and known events

2070

• February – The Teen Age Message, an Active SETI message sent in 2001 from the 70-meter Eupatoria Planetary Radar, arrives at its destination, the star HD 197076.
• Islam is expected to have surpassed Christianity as the world's largest religion by this time.

2074

• February 22 - Asteroid 2 Pallas will make a record close approach to Earth at 1.233 AU.

2075

• The ozone layer is expected to have fully recovered.

2076

• c. May 31 - the planetoid 90377 Sedna is expected to reach its perihelion, its closest point to the Sun. It is expected to reach a distance of 76 AU, or 76 times the average distance Earth is from the Sun. Sedna has a highly elliptical orbit, thus it is difficult to locate; at its aphelion, it reaches a distance of about 942 AU. This date is subject to adjustment as Sedna's orbit is still being refined.

2079

• June 6 - The smalldatetime fields in SQL-Server databases will wrap around to January 1, 1900.
• August 11 - Mercury occults Mars for the first time since 578. It is difficult to observe, but is the best observable occultation of a planet by another in the 21st century.

Fictional references

• 21st century in fiction