Articles 25th Anniversary of Voyager 2 Flyby of Triton Commemorated With Movie Triton, Neptune’s largest moon, received a visit from Voyager 2 back on August 25, 1989. Voyager 2 passed within 40,000 kilometers of Triton and took lots of images. Now, for the first time, and to commemorate the... August 27, 20145 min read