The first rover began its journey out of the solar system in 1980 and is now 120 times as far from us as Earth from the Sun.
Scientists initially believed that Voyager’s transition to this sphere of the universe, where influences from the rest of the galaxy are more pronounced, would be gradual and boring. But it proved more complicated than everything the researchers had imagined.
Voyager-1 was extended to the limits of the solar system. Voyager-1 was able to complete this mission and after a year of controversy over the location of Voyager-1. On September 13, 2013, it was announced that it had passed the limits of our solar system to be Voyager-1 would be the first probe to traverse the solar atmosphere in human history and the first man A year before the solar wind hit two particles, scientists could measure its location and make sure it surpassed the solar system cover.
There is also the Voyager-2 space probe, which was sent two weeks after Voyager-1 to perform the same mission but through different trajectories and Voyager-2 is expected to emerge from the solar system within three years. The two probes point them toward deep space toward the center of the Milky Way.
The Voyager probes rely on a plutonium nuclear battery and have also relied on slingshot batches through which orbit around the planets they visit.
When the two probes then shut up, they will continue their movement in cosmic space. Each carries a message outward of a gold-plated copper disc engraved with images of man, music and greetings from the earth in several languages. The disc is like a music CD and works the same way as a phonograph, but that was the case, in 1977 no one knew anything about the CD.
Voyager-1 is currently 11 billion miles from the Sun, and Voyager-2, which launched 16 days before its brother, is about 9 billion miles from the Sun, from the opposite side.
Each probe has no more than 68 kilobytes of computer memory, less than that of the smallest iPod, which has up to 8GB of memory, which means 100,000 times the memory found in Voyager.
The original goal of the Voyager flight project was to explore Saturn and Jupiter, and Voyager-1 successfully captured volcanic eruptions on the surface of Saturn’s Io satellite, signals of an ocean beneath the surface of Europa, Saturn’s other moon, and indications of methane rain on Jupiter’s Titan.
The Voyager-2 probe then set off to Uranus and Neptune, while Voyager-1 exploited Saturn’s gravity to take to the edge of the solar system.
With these results, the two probes still offer more than expected of them, although they are considered technically primitive, compared to the technologies available 35 years after their launch.
Currently, there is no longer a special crew to follow the probes, but there are 20 employees working part-time to analyze the data received by a large antenna of NASA’s Jet Propulsion Laboratories.
It takes about 17 hours for a signal from Voyager-1 to reach Earth, while the signal from Voyager-2 can be received about 13 hours.
It is noteworthy that the cameras installed on the two probes have been suspended for years, while the fuel used in them is enough until 2020.
As for the battery that supplies Voyager-1 with electricity, it relies on nuclear fuel, in which radioisotope nuclear reactions decrease over time and consumption of electrothermal diplexes, reducing the probe’s electrical capacity by 1.4 percent annually.
The project, the two probes, is estimated to cost about $892 million, according to the value of the dollar in 1977, or about $3.7 billion currently.
Voyager will continue to explore this unknown part of space and send photos and messages until it runs out of energy after about a decade.
“Putting a spacecraft in the middle of the stars is the most important step for us since we started the project 40 years ago,” said Professor Edston, chief scientist of the project.
“It’s not just a step, it’s a historic leap because it’s not like any spaceflight, it’s like orbiting the globe for the first time or the first foot on the moon because it’s the first time we’ve started exploring this mysterious interplanetary world,” he told the BBC.
In April-May and October 2013, data indicated a 100-fold increase in the number of protons (positive particles) per cubic meter in space, indicating that the probe is emerging from the solar system that scientists hesitated to assert for a while before asserting that it actually came out.
Astronomy theories have indicated that this increase can be observed if the spacecraft exceeds the impact of gravity and gets rid of the effect of particles that accompany the wind blowing from the ocean of the Sun.