Stones of the Universe 5, how many stones are there in the universe?

It's a mysterious question, and I can't tell if it's a meteorite.

Hello dear, very happy to answer for you:1There are countless celestial bodies and planets in the universe, among which there are a huge number of stones, but the vast majority are intangible, and there are three ways to estimate the number of stones in the universe:

1.Hubble Space Telescope observations: The number of physical particles in galaxies in the primordial universe is estimated to be 10 75, including objects of all sizes, about years old since the big bang, including stones.

Thus, an abstract estimate can be made of the total number of stones in the universe as 10 75. 2.Monte Carlo Simulation:

Scientists have used the Monte Carlo simulation method to estimate that there are 3,10,79 physical and colloidal galaxies in the universe, and about some stones. 3.Overall estimate:

It is somehow estimated that the number of visible foresight matter in the universe is about 10 80, and there are at least 10 38 stones in the universe. Therefore, it is difficult to estimate the number of specific stones in the universe, and scientists cannot accurately calculate the number of stones in the universe, some may be more than the above figures, and some may be less than the above numbers. I hope mine is helpful to you and I wish you a happy life <>

The Greenwich Observatory has released a short video "Space Rocks" to answer popular science questions about what types of meteors, meteorites, comets, asteroids and other rocks exist in the universe and where they come from.

The solar system to which the Earth belongs is very large, and there are various celestial bodies.

Moreover, between Mars and Jupiter there is an area called the "asteroid belt", where asteroid orbits are concentrated. Here, small stones and lumps of metal that did not become planets are stuck here under the strong gravity of Jupiter. In this asteroid belt there are asteroids.

Moreover, because this asteroid belt is very difficult and narrow, the asteroids collide with each other, so their respective orbits often change dramatically. Asteroids that change their orbits will fly all over the solar system.

Not only asteroid orbits, but there are many asteroids in the universe, and they are called by many names. The big rock is called an asteroid ......

The small ones are called shooting stars.

In addition, the meteorite that breaks through the Earth's atmosphere and falls is called a meteorite. Meteorites are divided into those that burn up in the atmosphere and those that don't. Even if it falls to the ground and burns out, it is called a meteorite.

Meteorites contain a lot of high-density iron and are black and magnetic in color. Such a meteorite is as old as the solar system, so it can be said to be the oldest thing that humans can touch.

Then let's talk about comets. The gas giant Jupiter has a freezing line near it, and there is a lot of moisture-containing material here.

In addition, the three gas giants of Saturn, Uranus, and Neptune are surrounded by an ice zone called the Kuiper Belt, in which large and small objects containing ice exist. There is Pluto in this Kuiper belt.

The Kuiper Belt, which contains a lot of ice, has been around since antiquity, but a larger group of celestial bodies than it is the "Oort Cloud". The main component of the group of celestial bodies here is also considered ice, that is, there is ice everywhere in the universe.

Then, these ice-containing materials collide with each other and change their orbits, becoming comets. For example, this comet flies towards the Sun and sometimes collides with other celestial bodies.

Short-lived comet nucleus evaporation - gaseous "coma" and comet material can cause the comet to produce a "tail". In this way, the comet that flies towards the sun will fall onto the sun and disappear.

It is said that some do not fall into the sun, but fly over and back into the frozen zone. These comets can also be seen from Earth.

In addition, when comets break near the Sun, their fragments may also enter the Earth's atmosphere.

Also, comets can burn up in the atmosphere and become meteorites. Comets and asteroids can both fall to Earth, but it is said that tens of millions of comets and asteroids fell on Earth in the early days. This is how the earth produces water.

That is, only these comets played an important role in giving birth to life on Earth. In addition, Rosetta, the famous first "landing comet detector" in history, is being explored in order to find out the origin of the solar system.