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Argo, a 2009 Triton flyby mission concept; Interstellar Express, a Chinese probe proposed to fly by Neptune and Triton in January 2038 en route to the tail of the heliosphere; New Horizons probe, performed a Pluto flyby in 2015; New Horizons 2, a mission proposed in 2002 which might have included a Triton flyby; Triton Hopper, a lander concept ...
Voyager 2: 20 August 1977 [2] Titan IIIE Centaur-D1T [8] NASA: Flyby Successful Closest approach at 01:21 UTC on 26 August 1981. Flew past Iapetus, Titan, Dione, Mimas, Enceladus, Tethys and Rhea at long distances. Later flew past Uranus and Neptune. [9] 3 Voyager 1: Voyager 1: 5 September 1977 [2] Titan IIIE Centaur-D1T [8] NASA: Flyby Successful
Voyager 2 is the only space probe to have visited the Neptune system, completing a flyby on August 25, 1989. An orbiter to Neptune was considered as part of the aborted Mariner Mark II program in the 1990s, and several mission concepts for an orbiter were developed in the 2000s, including a concept by the California Institute of Technology [4] and a version by the University of Idaho and ...
Voyager 2 was also to explore Jupiter and Saturn, but on a trajectory that would have the option of continuing on to Uranus and Neptune, or being redirected to Titan as a backup for Voyager 1. Upon successful completion of Voyager 1 's objectives, Voyager 2 would get a mission extension to send the probe on towards Uranus and Neptune. [ 13 ]
After Voyager 1 successfully completed its flyby of Saturn and its moon Titan, it was decided to send Voyager 2 on flybys of Uranus and Neptune. [ 1 ] After the planetary flybys were complete, decisions were made to keep the probes in operation to explore interstellar space and the outer regions of the solar system.
The Great Dark Spot in exaggerated color as seen from Voyager 2. The Great Dark Spot (also known as GDS-89, for Great Dark Spot, 1989) was one of a series of dark spots on Neptune similar in appearance to Jupiter's Great Red Spot. In 1989, GDS-89 was the first Great Dark Spot on Neptune to be observed by NASA's Voyager 2 space probe.
Neptune history: Township woman helped turn Martin Luther King's birthday into a national holiday "It remains an embarrassment for the township committee to let this problem go on for almost three ...
Voyager 2 spacecraft. On 25 August, in Voyager 2 's last planetary encounter, the spacecraft swooped only 4,950 km (3,080 mi) above Neptune's north pole, the closest approach it had made to any body since it left Earth in 1977. At that time, Neptune was the farthest known body in the Solar System. It would not be until 1999 that Pluto would ...