Since the beginning of exploring the universe, human beings have been looking for the existence of extraterrestrial life, and in search of extraterrestrial life, scientists launched mankind's first expeditionary probe - Voyager One decades ago. I believe that many friends know Voyager One, which is an unmanned outer solar system space probe developed by NASA and launched on September 5, 1977.
On August 25, 2012, Voyager 1 became the first spacecraft to travel through the heliosphere and enter the interstellar medium. As of January 2, 2018, Voyager 1 was at a distance of 21.1 billion kilometers from the Sun. It records a lot of information about humans and the planet, including the location of the earth, human messages and 55 languages on the earth, as well as 27 pieces of music and many sounds from nature, including the greetings of the unintended Secretary-General Kurt Wald on behalf of all mankind, which were recorded in the simplest way.
It can be said that if Voyager I is really captured by extraterrestrial life, even if it is a civilization that has just entered the universe, it is easy to crack the information of these humans and the earth on Voyager I, we have not gone through any complex encryption, it is recorded in a very simple way, and the purpose of human beings is that Voyager I can be captured by aliens, so that human beings know that there are other intelligent civilizations in the universe.
Voyager I is currently the longest probe for human probes, it has reached the edge of the solar system, some people thought that Voyager I has actually gone out of the solar system, but then the Oort Nebula on the outside of the solar system has also been included in the scope of the solar system by scientists, Voyager I is still in the solar system, if you want to fly out of the Oort Nebula out of the solar system, at the current speed I am afraid it will take tens of thousands of years.
So will Voyager One be captured by extraterrestrial life? Now it is still flying to the outside of the solar system, the speed of 17 kilometers per second, is one of the fastest human vehicles, when scientists designed it did not expect it to fly for such a long time, this is a miracle in human history, but also let many scientists feel confused. Voyager One should have been running without energy long ago, but now it's still functioning properly, it hasn't reached the end of its life, and scientists can't be sure how long it can run.
Voyager One with a human mission to the outside of the solar system, according to the previous solar system range setting, it has actually flown out of the solar system, is heading to the next star, whether it can be captured by extraterrestrial life who can not be sure, if it has not yet gone out of the solar system, the possibility of being captured by aliens is very small, in recent years, the rapid development of human space technology, the solar system has also carried out a series of explorations, did not find that the solar system in addition to the earth there is also the existence of intelligent life, even if there is life, It could also be some simple life.
If extraterrestrial intelligent life is lower than the technology of the earth or similar to the technology of human civilization, even if it is found that Voyager I wants to successfully capture it, it is difficult, but if it is an extraterrestrial civilization that is much higher than the earth civilization, it will be very simple to capture Voyager I, perhaps people have long discovered it, and they have long discovered humans on the earth, but because the civilization gap is too large, they do not want to contact and communicate with humans.
If there are other civilizations in the solar system, it must be from the civilization outside the solar system, their civilization level will be much higher than the earth, in the edge of the solar system, the range of the Oort Nebula, has always been a blind spot for human beings, this Oort Nebula range up to a light-year, what is there in it, we do not know at all.
Voyager I in the Ault Nebula range, what will encounter is also an unknown, perhaps there are other civilizations outside the solar system here, that Voyager I was found to capture is also possible, possible extraterrestrial life has long been found Voyager I, but did not destroy it, but after the capture of the information inside after reading the information and then released Voyager I, it is also possible, and then boldly guess, scientists did not think that Voyager I can not have such a long life, Is that still a possibility?
Voyager One was captured by an extraterrestrial civilization when life was coming to an end, and after the aliens intercepted the information of the earth and humans, they not only did not destroy Voyager One, but also helped Voyager One upgrade it to regain its life, so that it could continue to move forward and sail to the farther depths of the universe. If there is such a possibility, then the existence of extraterrestrial life on earth and human beings may already be known.
If Voyager I had not been known and captured by extraterrestrial life until now, then humanity may also take it back in the future, mainly because human beings now have a sense of crisis and do not want to be discovered by extraterrestrial civilization too soon. Hawking has warned humans several times not to contact and contact with aliens, Hawking believes that aliens are not necessarily friendly, and that alien civilizations that can come to Earth from distant galaxies have far more technology than Earth, and once aliens want to invade Earth, humans will have no resistance.
Decades ago, human beings just began to explore the universe, did not think too far, so sent Voyager One to find extraterrestrial civilization, but now more and more people realize that this is not good, human beings or quietly hide to develop, now human understanding of the universe is too little, technology is still too backward relative to the real interstellar civilization. Therefore, once humanity makes a major breakthrough in speed in the future, it will definitely send a spaceship to catch up with Voyager One and take it back.