was he also a part of any special expedition on earth?
Yes, North Pole expedition.
Neil Armstrong
In 1985, professional expedition leader Mike Dunn organized a trip to take men he deemed the "greatest explorers" to the North Pole. The group included Armstrong, Edmund Hillary, Hillary's son Peter, Steve Fossett, and Patrick Morrow. 
where was the first moon landing launched from Kennedy Space Center what was the name of the mission? Apollo 11 which operations were performed on the surface of the moon? They jettisoned "Eagle" before they performed the maneuvers that propelled "Columbia" out of the last of its 30 lunar orbits onto a trajectory back to Earth. what is the surface geology of the said astronomical body like? Its atmosphere and oceans were formed by volcanic activity and outgassing. how strong is its magnetic field compared to earth? It has an external magnetic field of generally less than 0.2 nanoteslas, or less than one hundred thousandth that of Earth. and gravitational field? UNANSWERABLE does it have any impact craters? Yes, which formed when asteroids and comets collided with the lunar surface. on which other planets are such craters found? Mercury, Callisto, Ganymede are there such craters on earth? Yes where are they located? UNANSWERABLE how are they identified? Non-explosive volcanic craters can usually be distinguished by their irregular shape and the association of volcanic flows and other volcanic materials. who were the crew members for the mission discussed above? Neil Armstrong, Buzz Aldrin and Michael Collins. was the first person a part of any other space missions? Yes, Project Gemini
wiki:25681924
Neil Armstrong [SEP] North Pole expedition
In 1985, professional expedition leader Mike Dunn organized a trip to take men he deemed the "greatest explorers" to the North Pole. The group included Armstrong, Edmund Hillary, Hillary's son Peter, Steve Fossett, and Patrick Morrow. They arrived at the Pole on April 6, 1985. Armstrong said he was curious to see what it looked like from the ground, as he had seen it only from the Moon. He did not inform the media of the trip, preferring to keep it private.