Recently, Voyager 2 became the most discussed spacecraft, because of its success in the interstellar space. Voyager 2 is the second human-made object to reach the edge of the Sun’s pull, according to NASA. It also offers a lot of valuable information. NASA’s spacecraft had sent-back a slight signal from deep space, and scientists have now decoded.
Furthermore, such a fact was confirmed by the University of Iowa by stating they noticed an odd thing in the plasma matter detected by a plasma wave device. The development of the plasma density is proof of Voyager 2 trip from the hot, lower-density plasma. Such a thing is representative of the solar wind to the cold, higher-mass of interstellar space. Don Gurnett, the corresponding author of the study, gave some insights about the research. He explained, “In a historical sense, the old idea that the solar wind will just be gradually whittled away as you go further into interstellar space is simply not true. […] there’s a distinct boundary out there.”
Voyager 2 and its predecessor launched at a short time one from another, and with different mission aims. Also, they were set for different tracks, too. However, they pass the ISM at almost the same distance from the Sun. Such a fact brought valuable information about the formation of the heliosphere, the bubble developed by the sun’s wind, as it increases to the edge of the solar system. Voyager 2, however, is the only one which brought the best data. The data from the Iowa instrument on Voyager 2, for example, offers extra clues to the density of the heliosheath, the outside place of the heliosphere, and a position from where the solar wind heaps up against the closer wind in interstellar space.