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This video can change your world. What you're seeing on the screen is the sky coming in at night. But we're watching from the ground. We can see many bright spots And most of them are the stars of our long-term finances. In the midst of them is the eternal darkness. In the video, the brightest body you've ever seen This is the natural satellite of the Earth, the Moon. Now, we'll gradually move to this photo. Looking at the bottom right corner of the face. Here, with the naked eye, we can hardly see anything. It's just a totally dark area. However, when the limit is reached to a certain extent We'll see a sight unimaginable. Here, hiding a vast world of stars. What you're seeing is the famous Hubble Deep Field. a photograph published by the Hubble telescope research team in 2012. Hubble has been gone for 10 years. With a total lighting time exceeding 2 million seconds I took over 2,000 photos of the same small area and took them back. This image contains at least 5,500 giant galaxies. It's like our bank account. In each galaxy there are hundreds of billions of stars. What's even more shocking is this photo. There's only one corner of the night sky on earth with a diameter of less than one tenth of the face. If you look at it with your normal eyes, this area has nothing. There's just a dark and empty corner of my heart. But this very small area was hidden for 5,000 years. Of course, the light from these stars comes from the universe. It's been over 10 billion years. The most beautiful things in the picture It's only 1 in 100,000 so it's only visible to the naked eye. The youngest ones in the picture It's still in the early stages of the universe. About 450 million years after the big bang. And this is only one corner of the universe really. It's beyond our imagination. However, more than 300 years ago We don't even know that yet. Teaching banks to exist beyond the other worlds. The limitations of the observation methods in the past From the early 17th century The telescope was invented The vision of man begins to expand from the solar system deep in the universe. Scientists have discovered that On the sky above, in the earth beneath, in the stars above There are many different kinds of clouds. It's called a tin van. The people of that time thought that Some tin is formed from gas and water. And other things can be like teaching a bank The islands of the universe contain stars. However, because the distance is too far We can't see the bodies clearly today. Until the 18th century French literature Charles Messier Start counting the tiles and groups like this. Some of them are numbered M31 This is the fairy goddess Andromeda. However, when you look at the first woman People still don't understand the things outside of teaching. So, you're the first woman I was a little nervous at the time. They call it the Great and Fair Lady. You're going to learn that. I used the method of measuring the brightness of the stars. To calculate the distance to this point. They were surprised to find that The first woman to cross the line of the bank. Do the distance measurement methods not accurate The first woman at that time was still a controversial figure. for beyond the power of human imagination. Until the year 1924, The famous writer Edwin Hubble I used the biggest telescope of the time. with a diameter of 2,4 metres To find out how to change the light of Seferit. It's a great day for a first lady. Based on the relationship between the periodic transactions The brightness of the sun changes the light of Seferit, Hubble has calculated the exact distance of the first woman. It's about 2.54 million light years away. This means that M31 is Messier numbered. Actually, a planet is like our bank. It's also a collection of giant and independent stars. Hubble's discovery has completely ended. The theory of the human island universe, The first modern astronomical study of the universe. At the same time, Hubble also discovered that Most of the stars in the universe They're all leaving us. And the more you do The speed is leaving as fast as possible. These findings not only renewed perceptions of people about the sky and the universe, But it still lays the foundation for the big bang theory. And the theory of space. In 1990, Remember the closing corners to Hubble's big In helping mankind understand the universe, Scientists have named a new space telescope This is the Hubble Space Telescope. The life of this telescope Has allowed mankind to begin to truly understand The universe we're living in. and provide many deep-space images, The hardness of the universe. Thanks to the powerful capabilities of the Hubble Telescope, We can even observe the regions of space It's more than 10 billion light years away. So, we're going to break our bank. There's only one way to get through the day. The space in the universe. Of course, Hubble also has limitations. Because it's a photographic telescope, So it can't pass through water and air. To see the stars hidden deep in space. Do that, the scientists have launched another foreign telescope, This is the famous James Webb telescope. James Webb is much stronger than Hubble. Even, in just a few minutes, James Webb can take the pictures. But Hubble will take months to complete. In the future, the telescope will be James Webb. Will become the new eyes of mankind, We're helping you see a universe as vast as you've ever seen. However, do the limits of the speed of light and the expansion of the universe, Even a telescope as powerful as James Webb You can't see the light of the universe. All the information we gathered All are confined within an observable universe. The diameter is about 93 billion light years. Beyond the boundaries of the observable universe, We can never know what exists. If there really is life in the universe, How are we gonna tell them where the Earth is? When we open our eyes wide enough, We'll see the stars in the universe The structure of the system is clear. These are dense and forming networks, Despite the large observations, They're just pieces. However, they are made up of giant galaxies. Every day there are so many things that exist, the areas where the concentrations of the gases are densely concentrated That's the way it is. In a number of structures, It's a very famous giant structure. Super-Gun is Laniakea. This is an extremely large universe structure, The total area of the site is approximately 100,000 ha. The range is up to 520 million light years. The entire Laniakea supercluster is like a giant cosmic grid. The components of this network are the natural groups. Our bank is on one of those lines. Around these lines are giant cosmic voids, There's almost nothing inside. In the super group Laniakea there are many groups of people, such as cụm thiên hà Safu, I'm going to tell you something. The name is Abel 3565. We're in a group of people they don't call a group of people called a Sư Nữ. In the Sư Nữ group there are about 2,500, Covering an area about 110 million light years across. However, even when we have identified the group Sư Nữ, Finding our long-term budget is still a big challenge. According to modern cultural observation, the central area of the group Sư Nữ, Our galaxy is about 60 million light years away. So we can look for long money In the area from the center of Sư Nữ, 60 million light years. Here, there is a group of people called the local group. This local group comprises about 50 thousand people, Covering an area with a radius of about 10 million light years. In the local group there are two of them. They're about 2.54 million light years away. The greater is called the first woman. A solid shell with a giant disk structure, It has a diameter of about 220,000 light years. And contains about 1,000 billion stars. The smaller the size of our budget, The radius is about 120,000 light years. However, finding long-term financing It's not easy to find land, Because right in the sun It's 1.3 million times larger than Earth. It's almost unremarkable in the long run. In the long run there are at least 200 billion to 400 billion stars. The bank is a good place to start. It looks like a pregnant disc. with a large disk structure. There are four main branches, the main ones, It's about 4,500 light years away. Most of the stars in the long run have It's on the four sides of this thing. Luckily, our solar system is not located on the main branches, It's on a small island called the Greek island. Gần Dià inside of this branch, The center of the galaxy is about 26,400 light years away. And turn back the clock. However, even on the island of Hunan There are still many houses, So finding the sun is not easy. We have to rely on solar systems close to the sun. I'm going to locate it. The distance from the sun is about 4.25 light years. Bao bao bao hai sao lun red quay around nhau And another red moon. The first red moon is very close to each other. It was only 1.68 billion km ago. In the third red moon, The pair is about 0.25 light-years apart. Based on this system, They can determine the position of the sun. The area is 4.25 light years away. Here, we'll see a star of the type of a golden moon. It's about 4.6 billion years old. That's the sun. Find the sun, Finding land becomes easier. When the sun has eight planets And 150 million kilometers from the sun is a blue planet. That's the land. So, we have completed the mission. Searching for Earth from space. However, in fact, Searching for land in space It's almost impossible. Do the speed of light limit The vision of people is limited The space is under observation. Even when we own a telescope extremely strong air, We can't see the light of the universe either. The regions are more than 46 billion light years away. I can't send information to the ground. Do that, we can only communicate The civilizations from other planets It's in the sky. What we know about super-guns, Laniakea, a woman of the world. local group These are the results of the observations. By telescope from the ground. We still don't know for sure. Where are these structures located in the entire universe? Or they belong to a larger structure. So, if we talk to The civilizations from other planets that I'm in the super group Laniakea, Maybe they don't know what the super group Laniakea is. The sky we're watching from the ground is just a tiny corner of the entire vast universe. The universe really exceeds our imagination, And the land is too small. Finding a planet like Earth The vast expanse of space Maybe it's harder to find a Kim tree In the middle of the Pacific Ocean. Video about the history of human exploration of the universe On the channel Khoa học hôm nay Come here all of you. Thank you and you have been watching.