Actually, the vastness of our universe is extremely vast. Once boundless, no one knows how big the universe is. In the end there is no end. Then for us humans, the earth we live in is also small, although it looks very Big, but in the universe, such a great planet, simply not, then we look at the universe around us in the end look like.
First of all, let's talk about the solar system. The solar system is a common solar system with the sun as the core. There are 8 large planets, more than 100 known satellites and hundreds of millions of other small objects in this galaxy. Then the radius of the solar system About 1 light-year or so.
The farthest point is a special area called Oort cloud. According to scientists' ideas, Oort Cloud is a primitive cloud that wraps around the solar system, forming about 5 billion years ago.The solar system, though, looks great, but if it were placed in the entire Milky Way, it would have been very inconspicuous because the Milky Way was too large to reach at least 100,000 light-years in diameter.
In such a large area, there are too many small galaxies like the sun. Based on some preliminary calculations, the number of stars that exist in the whole galaxy can reach at least 100 billion pieces, and our sun is just this One of 100 billion stars.
Then in the Galaxy group outside, as well as broader Virgo ultra-cluster, Virgo ultra-cluster is a large Galaxy group consisting of Super-cluster, its cover the scope of reach of terror 200 million light-years or so, let's in Virgo ultra-cluster when in, about 100 like this Galaxy group so large other Galaxy group, but even so, Virgo ultra-cluster is still not the universe boundary is located.
In the end, whether it's our solar system or the galaxy, or our own galaxy, and then the Virgo super galaxy, they are all part of a supernar system called the Laniakaiya super galaxy, Mission, is a huge collection of galaxies that cover 520 million light-years.
Within this assemblage, there are almost infinite stars, but even so, the Laniakiah Hyper-galaxy is still not the boundary of our cosmos. Outside this space, there is still a much broader universe.