The 29th century of the anno Domini (common) era will span the years 2801–2900 of the Gregorian calendar. Astronomical predictions for the 29th century The remnants of Comet Ikeya-Seki are expected to return to the inner solar system. It was last seen from Earth in 1965–1966, and broke into three pieces as it approached the Sun. March 25, 2816: At 15:47 UTC Mercury will occult Jupiter. March 6, 2817: At 9:36 UTC Venus will occult Saturn. April 11, 2818: At 20:41 UTC Mercury wi… (More on 2880)