Liked on YouTube: Voyager 2, A Portrait Before The Farewell

Voyager 2, A Portrait Before The Farewell
Well, just four days after the deat- of Elvis, on August 20...from the Cape Canaveral base, the Voyager 2 mission left! 43 years have passed, a lifetime...and yet since then Voyager has still been traveling, and still sending signals from ever more remote distances. It is the oldest of all of those still operational, but now perhaps it is time to say goodbye. Let's see why retracing its entire history. ------------------------------------------------------------------------------------------- Subscribe for more videos:https://www.youtube.com/c/InsaneCuriosity?sub_confirmation=1? Business Enquiries: Lorenzovareseaziendale@gmail.com ------------------------------------------------------------------------------------------- Pasadena, USA, summer 1964 at the Jet Propulsion Laboratory. In view of future space missions conducted with automatic probes, the young aerospace engineer Gary Flandro (1934) is assigned the task of studying new trajectories for the exploration of the external solar system. And Flandro does his job very well, so much so that he discovered that in a few years there would be an alignment between the outer planets that would allow a probe launched towards Jupiter to fly over Saturn, Uranus, and Neptune, only using the "gravitational slingshot" effect of each planet to reach the next; thus reducing from 40 to 10 years the time to complete the "Grand Tour", as it was then called the tour of the outer solar system. But it must be done soon... that particular alignment occurs in fact only every 175 years, and to take full advantage of the favorable moment the probe must be launched in a period between 1976 and 1980. Flandro's study, published in 1965, makes a lot of sensation in the environment, and in 1969 it originates a first NASA mission proposal called Planetary Grand Tour, later canceled for budgetary reasons; and then the one for the launch of two twin probes generically called Mariner 11 and 12 (only in 1977 the spacecraft would have received the name of Voyager 1 and Voyager 2), the first one directed to Jupiter and Saturn and the second one charged to realize the Grand Tour desired by Flandro, that is: Jupiter, Saturn, Uranus, and Neptune! In the same year, the JPL proposed the construction of the probes, following the design phase begun in 1966, but it will not be easy ... In those years there were still many uncertainties about the obstacles that a spacecraft could encounter in crossing a region of the solar system that had not yet been explored. Some scientists, for example, believed that the asteroids of the main belt were so numerous that they prevented a spacecraft from crossing unharmed. Of great help in understanding that the danger was there, but much overestimated, were the Pioneer probes 10 and 11, which launched respectively on March 2, 1972, and April 5, 1973, would have been the forerunner for the Voyager. To make a long story short, after eight years of changes to the scientific and engineering load, Voyager 2 was launched from Cape Canaveral at 14:29 (universal time) on Saturday, August 20, 1977. About two years later, on July 9, 1979, the probe reaches the minimum distance from Jupiter, flies over the planet, and is diverted towards Saturn; receiving also a "push" (thanks to the slingshot effect) that increases its speed to reach Saturn more quickly. So Voyager 2 reaches the minimum distance from Saturn on August 26th, 1981, and from there it is diverted and accelerated towards Uranus, which flies over on January 24th, 1986; and, finally, from Uranus, it is directed towards Neptune, the remote planet that the probe reaches on August 25th, 1989. Carried out the "primary mission", namely that of the Grand Tour of the four gas giants, the glorious spacecraft arrived at over 30 astronomical units of distance (equivalent to 4.5 billion kilometers) is assigned the "Voyager Interstellar Mission". ------------------------------------------------------------------------------------------- "If You happen to see any content that is yours, and we didn't give credit in the right manner please let us know at Lorenzovareseaziendale@gmail.com and we will correct it immediately" "Some of our visual content is under an Attribution-ShareAlike license. (https://ift.tt/1jttIpt) in its different versions such as 1.0, 2.0, 3,0, and 4.0 – permitting commercial sharing with attribution given in each picture accordingly in the video." Credits: Mark A. Garlick / markgarlick.com Credits: Ron Miller Credits: Nasa/Shutterstock/Storyblocks/Elon Musk/SpaceX/ESA Credits: Flickr Credits: ESO #InsaneCuriosity #Voyager2 #InterstellarSpace
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