In accordance with the researchers on the College of Iowa within the US, Voyager 2 has entered the interstellar medium (ISM), the area of area exterior the bubble-shaped boundary produced by wind streaming outward from the Solar.
But that does not mean they will disappear, said Bill Kurth, a researcher at the University of Iowa and co-author of the study focusing on plasma waves. Now, scientists have shared the initial science gained by Voyager 2's historic crossing.
The findings suggest that the heliosphere is symmetrical, at least at the two points that the Voyager spacecraft crossed. When the data is taken together, it helps scientists to gather an image of what the transition into interstellar space is like.
The part of the heliopause where Voyager 2 passed was thinner and smoother than the spot where Voyager 1 left.
Not only that says Richardson, but the interstellar medium closest to the boundary is more variable and hotter than expected.
The heliosphere is a bubble-like region of space created by our Sun. From the first Voyager-1 and now Voyager-2 we come to know that there remains a strong boundary. "The Voyager probes are showing us how our Sun interacts with the stuff that fills most of the space between stars in the Milky Way galaxy", said Ed Stone, lead author on one of the papers and a project scientist for the Voyager mission. Now, in a sequence of 5 papers, researchers have tried to examine or contrast the information from the two Voyagers and consider to make perception of the contradictions, knowing that we've bought practically nothing created that is heading to get new data from that length any time before long. They also hope to better understand the shape of the heliopause-the structure is supposed to have a long tail, like a comet, but no evidence of this tail has been found yet.
The heliosphere can be thought of as a cosmic weather front: a distinct boundary where charged particles rushing outwards from the sun at supersonic speed meet a cooler, interstellar wind blowing in from supernovae that exploded millions of years ago. However, Voyager 1's onboard plasma instrument was damaged, so the data returned was incomplete. Like Voyager 1, it is now moving "in a perturbed transitional region" just beyond the heliosphere.
Currently, Voyager 1 is located more than 22 billion kilometers (13.6 billion miles) from the Sun, and Voyager 2 is 18.2 billion kilometers (11.3 billion miles) from it.
Both Voyager probes launched in 1977, with Voyager 2 heading into space a few weeks before Voyager 1. The two probes exited the heliosphere at different locations and also at different times in the constantly repeating, approximately 11-year solar cycle, over the course of which the Sun goes through a period of high and low activity. Yet they crossed into the ISM at basically the same distances from the sun.
The scientists learned through Voyager 1 and Voyager 2 data of their crossings that particles of solar wind and of the interstellar space wind actually spill across the boundary. "It's just astonishing how fluids, including plasmas, form boundaries".
If we think about the potential for cosmic rays to promote biological mutations in life on Earth, these findings lend support to the idea that the sun could also have an influence on the evolution of living things on extraterrestrial worlds, in this planetary system and elsewhere.
The photo voltaic wind - the never-ending stream of charged particles emanating from the outer ambiance of the solar - creates an enormous protecting bubble known as the heliosphere that envelopes the photo voltaic system. 2019. Magnetic field and particle measurements made by Voyager 2 at and near the heliopause. The signal from Voyager 2, from beyond the heliosphere, is still beaming back, takes more than 16 hours to touch Earth and is picked up by Nasa's largest antenna, a 70-meter dish. According to this, Voyager-1 is the most man-made object from the earth.