Can all the people on Earth walk the Milky Way out of the Milky Way in their lifetimes combined?

You can't go out of the Milky Way, because the Milky Way is about 100,000 light-years, and all humans can only walk 1,400 light-years in their lifetime.

Yes, there are more than 6 billion people on the earth, and each of them has traveled a long way in their lives, adding up to a galaxy.

No, because the galaxy is infinitely large, the current level of science and technology cannot determine the end of the galaxy, and now there are too many means of transportation, and the distance traveled every day is limited.

According to the Hubble Space Telescope, there are at least 100 billion galaxies in the universe, but we don't fully understand our own Milky Way. Although only a medium-sized galaxy, the Milky Way contains billions of stars and billions of planets, all orbiting a supermassive black hole. The vastness of the universe makes it difficult for us to really imagine it in our minds.

Humans are like fleas on the earth compared to the earth. No matter how you toss, you can't make any big waves (even if it's a nuclear **, it's just an itch, and it can break the skin of the earth at most). The same is true for the Earth relative to the solar system.

Let's remember one data. The diameter of the Earth is about 12,000 kilometers, while the diameter of the solar system is two light-years.

With the Oort cloud as the boundary, one light-year is equivalent to 100 million Earths arranged side by side. However, such a huge solar system is only one member of the Milky Way, so how big is the diameter of the Milky Way? The previous thought was 100,000 light-years, but in the past two years, the diameter of the Milky Way has expanded to 200,000 light-years.

What does 200,000 light-years mean? We already know that the diameter of the solar system is two light-years. Now, we only need to enlarge the diameter by a factor of 100,000.

At this time, when we look back at the human beings living on the earth, the feeling of paleness is obvious. At this time, only electromagnetic waves or gravitational waves from distant deep space can make us aware of the existence of the universe. At this point, let's think about another interesting question.

As the saying goes, if we add up the lengths of all the paths that humans have traveled on Earth in their lifetimes, how long can they be? Can you transcend the solar system? Or even the Milky Way?

Let's make a simple assumption, the 7.5 billion people on the planet, all of whom are calculated by adults, walk 8 kilometers per hour, and walk from birth to death (say, they all lived for 100 years). The calculations then show that the sum of these distances is 100 million kilometers, equivalent to 5556 light-years. It's a pity that more than 5,000 light-years can't even go out of a corner of the Milky Way (the distance from the solar system to the center of the Milky Way is still 26,000 light-years), but the solar system can be a thousand times larger, but this can only be a beautiful fantasy, because the farthest probe that humans are currently flying will be tens of thousands of years.

Of course not, because the whole galaxy is so big that it's hard to even get out of the solar system, don't underestimate the size of the universe.

I don't think so, because the lifespan of human beings is only about 70 years, and it is difficult for us to go beyond the distance beyond our cognition in 70 years, and it is difficult for us to imagine the vastness of the universe.

No, you may be underestimating the size of the Milky Way, and at the moment humanity can't even go out of the solar system, let alone the galaxy and the whole universe.

It is still difficult to get out of the galaxy if the road that everyone has traveled in their lives is combined, because the size of the galaxy is far beyond our human imagination, and there is no spaceship that can get out of the galaxy at present.

I don't think so, I have to say that the people and the drama are really very big, so big that it is hard for you to imagine, and it can also be described as boundless, even if we take the road we have traveled in our lives, it is impossible to get out of the galaxy.

No. Because the Milky Way is too big, and the combined length of the journey that everyone has traveled in a lifetime is not as large as the radius of the Milky Way, they cannot go out of the Milky Way.

Although I haven't calculated it, and I don't know how to calculate it, I think it should be possible, because firstly, there are very many human beings, and secondly, the distance of the Milky Way can also be measured.

The vastness of the universe is noisy and wide, and it is difficult for us to really imagine in our minds that human beings are like fleas on the earth relative to the earth, and no matter how much they toss, they can't make any big waves (even the nuclear ** is just an itch, at most it makes the earth break the skin).

The same is true for the Earth relative to the solar system, let's remember a statistic that the diameter of the Earth is about 10,000 kilometers, and the diameter of the solar system is a full two light-years (bounded by the Oort cloud; One light-year is equivalent to 742 million Earths lined up next to each other.)

However, such a huge solar system is only a member of the Milky Way, so how big is the diameter of the Milky Way? The previous thought was 100,000 light-years, but in the past two years, thanks to advances in observations, the diameter of the Milky Way has been further expanded to200,000 light years

What does 200,000 light-years mean? Now that we know that the diameter of the solar system is two light years, and now we only need to expand the diameter by a factor of 100,000, then let's look back at the human beings living on the earth, and the feeling of paleness and powerlessness suddenly appears, at this time, only electromagnetic waves or gravitational waves from the distant deep space can make us realize the existence of the universe.

At this point, let's think about an interesting question, as the saying goes, if we look at the path that all human beings on the earth have walked in their lifetimes, how long can it be combined? Can it go beyond the solar system? Or even the Milky Way?

Let's make a simple hypothetical assumption, the 7.5 billion people on the earth, all calculated according to adults, each person walks 8 kilometers per hour, and has been walking from birth to death (let's say they all live to be 100 years old), then the results of the calculation show that the sum of these distances is 100 billion kilometers, which is equivalent to 5556 light years.

It's a pity that more than 5,000 light-years can't even go out of a corner of the Milky Way (the distance from the solar system to the center of the Milky Way is still 26,000 light-years), but the solar system can go out a thousand times, but this can only be a beautiful fantasy, because the farthest probe that humans currently fly will take tens of thousands of years to fly out of the solar system.

(The height.) The two spacecraft took different routes when it came to studying planets outside of our neighborhood. Both left Earth in the fall, Voyager 2 was launched in August 1977 and is currently 9.5 billion miles (15.3 billion kilometers) away, and in September of the same year, Voyager 1 left Earth but is now heading beyond the Kuiper Belt, encountering galactic radiation similar to the solar wind, which clears other radiations and keeps them away from Earth and the interior of the solar system.

It all depends on your definition of "arrival".

The farthest humans ever from Earth may have been the astronauts on the Apollo spacecraft, flying around the far side of the moon in a command module.

To date, the farthest traveled by human-made objects was the Voyager 1 space probe, which has left the solar system and is now believed to be traveling through interstellar space. Voyager 1 is now more than 21 billion kilometers away from Earth and is traveling at 17 kilometers per second away from us, but even then it will still take 10,000 years to reach the nearby star Sirius.

If you consider what we mean in terms of energy or signal, then our radio waves have reached the depths of the galaxy 120 light-years away. 120 light-years may sound like a lot, but when you consider that the diameter of the Milky Way is 100,000 light-years, you realize that it's just the diameter.

Even if there are extraterrestrial civilizations looking for us, it will be difficult for us to be detected.

As far as humans are concerned, we haven't left the crib yet. The furthest we've gone is our own moon. To give you an idea of how big our galaxy is, let's make some big and small relationships in space.

A light-year is the time it takes for light to travel for a year. Our moon is light-seconds away from us. The Sun is 8 light-minutes from the Earth.

When you cross the outermost point of Pluto's orbit, the diameter of the solar system is not even 1 light-day. The closest star to us is light-years away. Our galaxy (the Milky Way) is more than 150,000 light-years in diameter.

When you start to form a picture in your mind of these numbers that I'm referencing, you start to realize that we're just a very small, invisible point in space compared to the rest of the galaxy. As a species, we are not yet out of the cradle, and it may be a few more centuries before we decide to send humans to our nearest star.

We took our first steps towards a baby's toddler. That said, we've never ventured to set Apollo 13's record of 158 miles above the other side of the moon. This means that we have reached 248,655 miles above the Earth so far.

According to reported data, as of June 2020, the world's total population has approached 7.8 billion, which includes babies, children, young people, prime of life, and the elderly. So, how far can the total length of the road traveled by all people on the earth in a lifetime add up? The answer must be far, far away, and how far away.

Take the Milky Way as an example, the vertical distance of the disk of the Milky Way is close to 200,000 light-yearsThe path that all people on Earth have traveled in a lifetime is enough to cover the Milky Way, and perhaps even more than the distance perpendicular to the disk of the Milky Way.

We can roughly estimate that a person's life is about 25,000 days (just 10 to 80 years old). When I was a baby, I basically carried it on my back, carried it, and lay down, even if I didn't walk any distance. And everyone on the earth basically has 8 hours of sleep a day, assuming that everyone walks at least 2 kilometers a day, then a person walks 50,000 kilometers in his life, then, nearly 7.8 billion people on the earth, the total length of the road they have walked in a lifetime is close to 4 million kilometers.

According to the conversion formula of light years and distance kilometers, the vertical length of our Milky Way disk is almost 2 million kilometers, which means that the road that all people on the earth have walked in their lives can get out of the Milky Way if they walk vertically on the Milky Way, and even 2 million kilometers out of the Milky Way. At the same time, the road that each of us has walked in our lifetime revolves around the earth's equator twice, and nearly 7.8 billion people can walk about 160 times around the earth's equator in their lifetime.

All of this shows that each of us will go through many, many roads in our lives, no matter which road we walk, we must be worthy of the experience we have walked in this world; All of this shows that each of us is very small for the whole earth, and we must give full play to our own value.

Assuming that the total population is 7.8 billion and a person can travel about a meter second, 7.8 billion people will have to travel 138364200 billion kilometers in 75 years.

All the people on Earth add up to about 7.2 billion people, and the length they can travel in a lifetime is about the length of a galaxy.

No, the scope of the galaxy is unimaginably large, it is the sum of the paths that all people on the earth have traveled in their lifetimes, and it may not be able to get out of the galaxy.

No. Because the Milky Way is calculated in light years, which is the speed of light, it is impossible for a person to travel so many miles in a lifetime.

Yes, after all, there are a lot of humans on the planet, and they will walk many ways in their lives.

I think it's possible, because people will walk a lot in their lives, and it will take a long time, so you can accumulate it.

Perhaps, because there are so many humans on the planet that there is always a long chain. In this case, it is possible to walk out of such a circle in the Milky Way.

The total length of the path that all people on Earth have traveled in their lifetimes can exceed the Milky Way. Because the earth has a large population, and the range of travel is also very wide.

No. Because the Milky Way is too big. Nor is the path that all the people on Earth have traveled in their combined lives is enough to reach any of the edges of the Milky Way.

In fact, someone has calculated this problem, there are 7.8 billion people on the earth, according to the 75-year-old life expectancy of each person, the distance is about 1463 light years, and the light radius of the Milky Way is 100,000 light years, and the disk is 2000 light years, so it is impossible to go out of the Milky Way.

Definitely get out of the galaxy.

The average life expectancy of the world's population is 75 years, and during that 75 years, assuming that the population is in a dynamic equilibrium of births and deaths, the total population remains stable at 7.8 billion. There are 365 days in a year, walking without sleep every day, so a person has to walk a total of 27,375 days in his life. An adult can walk about a meter per second, 3,600 seconds an hour, so a person has to walk kilometers an hour.

In total, 7.8 billion people have to travel 138364200 billion kilometers in the form of relay races in 75 years. The universe is extremely vast, and the distance needs to be calculated in light years, which is about 9,460.7 billion kilometers per light year. The above distance translates to about 1463 light-years.

How big is the Milky Way?

William Herschel, the first scientist in history to systematically study the structure of the Milky Way along a river, observed 110,000 stars, mapped the distribution of stars in the Milky Way, and found that the stars in the Milky Way were distributed in disks.

Mankind's comprehensive understanding of the Milky Way began in the 20th century. In 1914, astronomer Harlow Shapley proposed a detailed model of the Milky Way, found that the Sun was not at the center of the Milky Way, and measured the distance of the Sun from the center of the Milky Way. In 1924, astronomer Edwin Hubble discovered extragalactic galaxies (which were first proposed by Kant in 1755) through astronomical observations, which confirmed that the Milky Way was nothing more than an ordinary galaxy in the universe.

Later, it was also found that the Milky Way was rotating.

The Sun is just one of about 200 billion stars in the Milky Way, a giant barred spiral galaxy (a type of spiral galaxy) that is 10,000 light-years away from the center of the Milky Way and takes about 100 million years to orbit the center of the Milky Way. The universe was born 13.8 billion years ago, while the Milky Way was born about 12.5 billion years ago.

The image below shows a panorama of an infrared scan of the Milky Way.

The shape of the Milky Way is actually like a flying saucer in a science fiction movie, thick in the middle and thin on the sides. The central region of the Milky Way is about 10,000 light-years thick, while the disk around the Milky Way is about 10,000 light-years thick. The Milky Way is like a disk, and according to observational data, it is generally accepted that it has a radius of about 100,000 light-years.

At present, human understanding of the Milky Way is not perfect, and many data are not accurate. Based on the observation of the entire universe, scientists have found that the Milky Way is already a relatively large galaxy in the universe.

Whether you can get out of the galaxy depends on how you go?

All people on Earth can walk about 1,400 light-years in a lifetime, and the structure of the Milky Way is not spherical, and whether it can get out of the Milky Way depends on how to go.

The Sun is not located in the central region of the Milky Way, but on the galactic disk of the Milky Way, about 10,000 light-years from the edge of the Milky Way. If you walk along the edge of the Milky Way's disk, even if 7.8 billion people walk for 100 years without eating or drinking, the cumulative walking distance will not reach the edge of the Milky Way.