Missions to other planets in the 1970s, most notably the "فوياجر 1" and "فوياجر 2" missions, saw a surge in the number of moons detected, and observations since the year 2000, using mostly large ground-based optical telescopes, have discovered many more, all of which are irregular.
Missions to other planets in the 1970s, most notably the "Voyager 1" and "2" missions, saw a surge in the number of moons detected, and observations since the year 2000, using mostly large ground-based optical telescopes, have discovered many more, all of which are irregular.