2020-07-03

Flying 21.1 billion kilometers, the last photo taken by Voyager 1, why do humans think deeply?

By ddzyx

In order to explore extraspace, humans launched multiple deep space probes into space in the 1970s. They were Pioneer 10, Pioneer 11, and Traveller 1 and Voyager 2, among these detectors, the one with the largest and most famous contribution is Voyager 1, why? Because the Voyager 1 probe is claimed to be the greatest probe in human history, it has created multiple firsts in history:the first probe to fly out of the solar system, the probe with the longest flight distance, and the probe with the largest contribution 3. The fastest detector.

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“Dark Blue Spot” photo taken by Traveler 1

The”dark blue dot” photo is not only the greatest photo taken by Voyager 1, but even one of the most famous photos in the history of human spaceflight, this photo is in the end What is recorded and why is it so great?

The reason why this photo is so great is that this photo is a photo of the Earth taken by Voyager 1 from 6.4 billion kilometers away. In this photo, the huge earth is only one pixel. Size, in the eyes of humans, the earth is considered to be a relatively huge planet, because some people once calculated that the surface area of ​​the 510 million square kilometers of the earth can stand at least 4000 trillion people, even the land of 150 million square kilometers can stand 1200 trillion Personally, it can be seen that the earth is very huge, at least relative to humans, but the huge earth is so small in the universe that it is not worth mentioning.

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earth

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” pale blue dot”photos show the Earth is only a pixel size

The volume of Jupiter, the largest planet in the solar system, is 1300 times that of Earth, and the volume of the Sun is 1.3 million times that of the Earth. That is to say, a sun can hold 1.3 million Earths, and it has an image in the entire universe. The number of stars like the sun is at least trillions, even if we have as many as 100 billion stars in the Milky Way, which shows how small the earth is in the entire universe. The famous photo taken by Voyager 1″ The”dark blue dot” also more intuitively shows how small the earth is in the vast universe. Many people do not understand what this picture means when they see this picture. Only when someone notices the bright spot on the picture does it show the difference between this picture and The difference is that the little bright spot is the earth we live in. Many people have expressed their disbelief or shock. This picture is shocking and makes people think deeply. Humans have been thinking about such a problem:humans How small is it in the universe?

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Earth photographed near Saturn

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earth and compare the size of Jupiter

How small humans are in the universe, we can get the answer by comparing the celestial structure of the universe. What is the largest celestial structure in the universe? Many people first think of the Milky Way, thinking that the Milky Way is the largest celestial structure in the universe. In fact, we have always been wrong. There are more celestial structures in the universe than the Milky Way, and there are more than one, but four. The Milky Way belongs to The galaxies in the universe have larger celestial structures than galaxies, including galaxy clusters, super galaxy clusters, super galaxy cluster complexes and the Great Wall of the universe, So the complete structure of the universe should be asteroids-planets-stars-galaxies-galaxy clusters-super galaxy clusters-super galaxy cluster complex-Great Wall of the Universe.

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Complete structure picture

The galaxy cluster where the Milky Way is located is called the local galaxy cluster, with a diameter of 10 million light years, which is 100 times the diameter of the Milky Way galaxy (100,000 light years). The local galaxy cluster is included in a diameter of 110 million light. In the supercluster of the year, this supercluster is called Virgo supercluster, and this supercluster contains at least 5000 galaxies , But the Virgo cluster is not the largest super galaxy cluster in the universe. The largest super galaxy cluster in the universe is a super galaxy cluster called Rania Kea super galaxy cluster, which has a diameter of 540 million light years and contains at least 10 Thousands of galaxies, although the Lakenia supercluster is too large to imagine, but the Laniakai supercluster is just a little in front of its superstructure complex of superstructures, the current scientist. The largest supercluster complex found in the universe is called the Pisces-Cetaceans superstar The cluster complex, 1 billion light-years in diameter, is almost twice the size of the Lakenia supercluster.

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laniakea supercluster

Next, I will introduce the largest celestial structure in the universe-the Great Wall of the Universe. What is the Great Wall of the Universe? The so-called Great Wall of the Universe is the concentration of a large number of galaxies, galaxy clusters and super galaxy clusters in a certain area of ​​the universe. The light emitted by these clusters forms a chain as magnificent as the Great Wall, so it is named the Great Wall of the Universe. The largest cosmic Great Wall discovered by mankind in the universe is Wuxian-North Coronation Great Wall, do you know how big it is? The diameter is more than 10 billion light-years, and the current observable radius of the universe is only 46.5 billion light-years, that is, the diameter of the Great Wall of Wuxian-Beijing Crown is more than a quarter of the observable radius of the universe.

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Hercules – Corona Borealis universe Wall

In Before introducing these giant celestial structures, many people suspect that the”dark blue dot” taken by Voyager 1 is fake. They do not believe that the earth in the photo is so small, but after knowing the 100 million light-year Virgo supercluster, After 540 million light-years of Lakenia Supercluster, 1 billion light-years of the Pisces-Cetaceae supercluster complex, and even 10 billion light-years of the Wuxian-Beijing Great Wall, people only believed in Voyager 1 Photos of the earth taken 6.4 billion kilometers away are true. Our earth is really small in the universe, and it’s really not even as dusty. Humans have always had a dream, that is, to figure out how big the universe is, but through these universes Through the comparison of the size of celestial bodies, we found that human beings have a long way to go in exploring the path of the universe.