From horse-drawn carriages to cars, steam engines to trains, it has experienced generations of changes and the development of science and technology, with the continuous progress and development of science and technology, human beings have also begun to explore and study the solar system, and also fantasize that one day they can rush out of the solar system.
But human exploration of the universe has only reached the moon, in 1961 Gagarin piloted vostok 1 around the earth; on July 21, 1969, the first manned lunar landing Apollo 11 carried Neil Armstrong and his party to the moon.
All in all, the only planets humans have visited so far are probably The Earth and the Moon, although the probe has landed on Mars, but it is only a probe, and at the same time it has orbited Mercury and Jupiter. Other planets never arrived. What about other planets and the vast solar system? Human exploration of the solar system has never stopped.
If we continue to improve space technology to increase the speed of spaceflight to the speed of sub-light or the speed of light can we rush out of the solar system? The answer may not be that the factor preventing humans from rushing out of the solar system is only speed? In addition to speed, there may be many factors that hinder the pace of rushing out of the solar system.
For now, humanity's understanding of the solar system is only superficial. More than forty years ago, humans launched two probes beyond the solar system, they are the famous "Voyager I" and "Voyager II", can they take humans out of the solar system? What would we face if we could rush out of the solar system?
< h1 class="pgc-h-arrow-right" > the encounters of Voyager One and Voyager II</h1>
Sometimes we hear descriptions of travelers far from the solar system, far into distant interstellar space. Are they really leaving the solar system? If the solar system is shrunk and Neptune serves as the boundary of the solar system, then the "traveler" has indeed left the solar system. If you take a planet as the boundary of the solar system, this is just a rough definition of the solar system that humans have made under extremely limited circumstances.
The Voyager 1 and 2 probes, launched that year, flew in different orbits. Researchers have shown that Voyager 1 flew 17.8 billion kilometers over 35 years, and by 2007 it was at a distance of 15.18 meters (that is, 15.18 × 109 kilometers) from the sun. Its mission was to probe Jupiter and Saturn, and now it is to detect the solar wind. Voyager 2 explores Uranus, Neptune, and Saturn.
Data from Voyager 1 seven years ago showed that although it had been in space for 40 years, it was still hovering in the solar system, flying in the shock waves formed by the solar wind and planets, which were called "bow shocks" by humans and said that they had never left the solar system.
"How big is our solar system?" According to experts, the solar system is nothing more than a dwarf galaxy in the constellation Orion, and even the Kuiper Belt behind Pluto is only the center of the solar system. In contrast to Voyager 2, it is not as far as 1, so it means that it has not yet reached the central point of the solar system.
Three years ago, it had broken through the heliosphere to become the second probe to enter interstellar space, and it was the first to visit Uranus and Neptune. Voyager 2 is known as the most efficient probe because it visits four planets: Jupiter, Mars, Uranus, and Neptune. If it continues to fly, it will reach the planet Centaurus in 180,000 years.
Voyager 1 is so far 144 astronomical units (1 AU equivalent to 149597879799 meters) from Earth, nearly 21.7 billion kilometers. In other words, such a long distance is just reaching the middle of the solar system. Although Voyager 1 carries a large amount of propellant, it can only last until 2040, but the communication system can only last until 2025, which means that it will no longer receive any news after 2925. It can also be argued that human creation after 2025 will not be able to reach beyond the solar system.
Did Voyager 2 fly out of the solar system? NASA said that the boundary of the solar system is outside the Oort cloud, and it takes 300 years to reach the inside of the Oort cloud and 30,000 years to fly over the Oort cloud.
It is currently about 18 billion kilometers from Earth, and three years ago Voyager 2 flew over the outer edge of the solar layer and saw the scattered plasma, known as the "solar wind", which finally stopped under the action of high-energy radiation, creating the top layer of the solar wind. This so-called "shield" encloses the planets of the solar system. This shield also effectively isolates the radiation intensity. So Voyager 2 also failed to rush out of the solar system.
In November of the same year, Voyager 2 left the heliosphere and flew beyond interstellar space. Therefore, in the endless solar system, as far as our current level of technology is concerned, it is impossible to achieve the goal of rushing out of the vast solar system.
< h1 class="pgc-h-arrow-right" > we can't leave the solar system? </h1>
How big is the solar system as humanity understands? Are the boundaries of the solar system planets or what?
Bounded by the orbits of the planets, Herschel discovered that Uranus was the last planet in the 1980s, a discovery that doubled the size of the solar system because of this discovery that caused Voyager 1 to fly only half the distance to the solar system.
Bounded by the solar wind, the heliosphere is created when the solar wind is at its maximum extent, and Voyager 1 enters interstellar space through the heliosphere in the direction of the solar wind, but NASA is careful to point out that it did not fly out of the solar system.
Bounded by gravity, the Oort cloud is the most distant boundary, and the Dutch astronomer Oort points out that this is the last region of the sun's gravitationally bound celestial bodies.
If we think of the Oort cloud as a boundary, we will never see Voyager 1 fly out of the solar system.
Thirty years after the "Big Bang", celestial bodies and galaxies gradually formed, and such a vast solar system appeared in the universe. The first to emerge was the Milky Way with a diameter of about 200,000 light-years, and then the evolution of four or five billion yuan took the prototype of the solar system. The solar system is composed of eight galaxies with many small comets and asteroids and the Sun, and the eight galaxies are Mercury, Jupiter, Earth, Jupiter, Saturn, Mars, Uranus, and Neptune. There are also many small bodies between Mars and Jupiter in the solar system. As well as countless meteoroids and meteor swarms.
If Neptune is the boundary of the solar system, the diameter of the solar system is 60 astronomical units, and if the heliosphere is used as the boundary, the diameter is 100 astronomical units.
The Sun is the G2 main sequence star of the Solar System and the closest star to Earth. Near the ecliptic plane beyond Neptune's orbit exists the Kuiper Belt, which contains many microstars, and Kuiper has been mistaken for the boundary of the solar system. It hovers 40-50 astronomical units from the Sun and is covered with large and small frozen objects. In other words, if you rush out of the solar system, this Kuiper Belt is also the only way to go.
Beyond the Kuiper Belt of 10,000 astronomical units, there is a Nealt cloud. This makes it more difficult for humans to leave the solar system invisibly.
< h1 class= "pgc-h-arrow-right" > spherical cloud- Oort cloud</h1>
In 1994, Jupiter collided with a comet, so where did the comet come from?
That's right, it's from the Ault Cloud. It contains trillions of small objects, and comets are just one of them. At a distance of 50,000-150,000 AU from the Sun, it is a large gas planet in the shape of a unique spherical shape, composed mainly of ice stars. The Oort Cloud has been in the far side of the Sun for a long time, although it is weakly exposed to solar radiation, but it is very stable That the Oort Cloud has tens of thousands of comets and can constantly produce new comets, and humans speculate that the total mass of the Oort Cloud Comet is 5-100 times that of The Earth.
If we take the Oort Cloud as the boundary of the solar system, that boundary is so far away from the Sun, it takes two years for a ray of sunlight to reach the Oort Cloud, and it will take about 7 million years for us humans to reach the Oort Cloud at a speed of 350 kilometers per hour. This undoubtedly means that we cannot walk out of the solar system.
The Oort Cloud has never been explored or proven, and even "Voyager 1 I can't provide data for humans, and at its current speed, it is expected to reach the Oort Cloud in 300 years, and it will take 30,000 years for it to pass through the Oort Cloud." And spacecraft built with today's technology can't go that far. So how long will it take to leave the solar system at the rate of human technological development? Is the speed of light OK?
<h1 class="pgc-h-arrow-right" how long does it take to fly out of the solar system at the speed of light >? </h1>
In a vacuum, the speed at which light passes is called the speed of light. The speed of vacuum light is currently the fastest speed in the world. When the speed of an object reaches the speed of light, its own mass will be infinite, so only a stationary object with a mass of 0 can always move at the speed of light.
The speed of light is about 300,000 kilometers per second in a vacuum. In the 1780s, Mikeson and Morrie combined Einstein's theory of relativity to arrive at the speed of light at about 299792458 meters per second. This measurement has promoted the development of history and the development of Einstein's theory of relativity.
Light is an electromagnetic wave, that is, no object can exceed the speed of light. If a single electron is accelerated to the speed of light, infinite energy is required.
At the speed of light, how long will it take for us to fly out of the solar system? The answer is tens of thousands or even hundreds of thousands of years, the distance is infinite, but our lifespan is limited. Even at the speed of light, humans cannot leave the solar system.
< h1 class="pgc-h-arrow-right" > concluding remarks</h1>
Although world civilization is progressing day by day, national science and technology are becoming more and more developed. But we still can't leave the infinite solar system. If the two sisters of the "Voyager" leave the solar system, it will be at least forty thousand years later. Although we are inseparable from the solar system today, human beings have always been on the road.
But now the earth is facing great challenges, the invasion of viruses and the huge pressure of environmental pollution, if these challenges cannot be overcome, how long do you think the earth can exist? What we need to do under the same "protective cover" is to protect the air environment and minimize air pollution, after all, the pollution of the earth has now become the number one challenge for people around the world.
Science and technology are developing, and the times are progressing. On the road of development and progress, please protect our good earth!