Primary Science Quiz Questions How was the solar system formed

There are 8 definite planets (and more if you count dwarf planets like Pluto), we have only one star "the Sun" orbiting us, and within the confines of our system are asteroid belts, rocks of various sizes, tons of solar rays and radiation, and many more. There's so much to explore in our solar system.

Sometimes it is difficult to find because our solar system is about 100 million kilometers long. Even in 2021, we will still find shocking and surprising things related to the solar system. But, of course, the main goal of humanity as a whole is to do what many consider unthinkable.

Beyond our solar system, not only to see it, but to explore it and live on it. To truly be a species that exists between galaxies, rather than just living in a small part of the universe.

The world is so exquisite, like a machine with such a complex structure, that it is impossible to believe that it is a natural object, as if a watchmaker designed and created it all. A closer look at Titan reveals its abundance of geological activity, rivers, deltas, deserts, and the possible presence of liquid methane in rain and snow. Escape from a cold earth.

Jupiter is the largest planet in the solar system, and its structure and composition hide the secrets of the formation of the solar system. The Juno probe, which will arrive at Jupiter in July 2016, will reveal the mysteries of Jupiter's interior and magnetic fields.

Pluto has always been mysterious because it is too far away to discern the structure of the surface even with Hubble. Contrary to previous astronomers' predictions, Pluto has been active in geological activity recently, and what the energy is is still an unsolved mystery. But how much science can Mars really do?

I don't think it's much. A lot of geologists are going to spray me. NASA still loves Mars because the public loves Mars.

It indicates that there will be many Martian missions in the future, including Mars sample return, manned Mars landing, and Martian agriculture. But how much scientific value does Mars have as a planet that has been dead for 4 billion years, is currently a question for scientists to ponder.

Recently, it was discovered that the sun and the solar system were formed in 200,000 years, and now the solar system has been studied and discussed in various aspects, so there are new discoveries in this area.

Research an asteroid that has a lot of minerals on it, and many people are figuring out how to mine it.

The latest research results show that Jupiter may have a primitive form of life, so a gas planet like Jupiter could also have life.

Recent research has shown that the Sun and the Solar System were formed over a period of 200,000 years.

The Sun is an ordinary star in the Milky Way, with an average distance of 149.6 million kilometers from the Earth, a diameter of 1.39 million kilometers, an average density of grams, a mass of grams, a surface temperature of 5770 Ke, and a central temperature of 15 million Kelvan. From the inside to the outside, they are the solar nuclear reaction zone, the solar troposphere, and the solar atmosphere. Thermonuclear reactions are constantly taking place in its central region, and the energy produced is radiated into space.

One in 2.2 billion of this energy radiates to the Earth after about 8 minutes, becoming the main source of light and heat on Earth. Stars also have their own life histories, from birth, growth, aging, and eventually death. They come in different sizes, colors, and evolutionary journeys.

The star's connection to life is not only manifested in the fact that it provides light and heat. In fact, the heavy atoms that make up planets and living matter were created during the explosions that occurred at the end of the lives of some stars. The age of the Sun is about 4.6 billion years, and it can continue to burn for about 5 billion years.

In the final stages of its existence, the helium in the Sun will be transformed into a heavy element, and the Sun's volume will begin to expand until it engulfs the Earth. After a 100 million year red giant phase, the Sun will suddenly collapse into a white dwarf The final stage of all star existence. After a few trillion more years, it will eventually cool down completely and then slowly disappear into the darkness.

The Sun is the closest star to Earth and is the central body of the solar system. It is 1.3 million times the size of the Earth. Among the more than 100 billion stars in the Milky Way, the Sun is just an ordinary member, it is located near the symmetry plane of the Milky Way, about 26,000 light-years from the center of the Milky Way and about 26 light-years north of the galactic plane, it rotates at a speed of 250 kilometers per second around the galactic center on the one hand, and on the other hand, it moves at a speed of kilometers per second relative to the surrounding stars in the direction of Vega.

Thermonuclear reactions are constantly taking place in its central region, and the energy produced is radiated into space.

Rotation The rotation of the earth cannot be based on clouds or oceans, and the rotation of the sun cannot see the surface, but people cannot know its internal conditions, so it is impossible to know the data of the rotation of the sun. People only see the Sun as a fluid planet, and everything else is speculation.

Revolution: The Sun revolves around the center of the Milky Way. There may be a huge black hole at the center of the Milky Way, but it is surrounded by stars, so it looks like a "silver disk". These stars all revolve around the "silver core". Unlike the Earth's orbit, these stars get closer to the "silver nucleus" with each orbit.

The Sun is the central body of the solar system and occupies the overall mass of the solar system. The eight planets in the solar system, asteroids, meteors, comets, outer Neptune objects, and interstellar dust all revolve around the Sun, which revolves around the center of the Milky Way.

The Sun is a star located at the center of the solar system, and it is almost an ideal sphere intertwined with hot plasma and magnetic fields. The diameter of the Sun is about 1,392,000 (kilometers, equivalent to 109 times the diameter of the Earth; It is about 1.3 million times the size of the Earth; Its mass is about 2 10 kilograms (330,000 times that of the Earth).

The volume of the sun is 1.3 million times that of the earth, the central celestial body of the solar system, and an ordinary star in the Milky Way, the sun is 100 million kilometers away from the earth, with a diameter of 1.39 million kilometers, and it takes 3,500 years to walk from the earth to the sun, and 20 years to sit even if you take a plane.

The sun can help people do many things, such as allowing plants to grow.

Sunspots, flares, and sunsets are often found on the surface of the sun.

The Sun is a sphere of hot gas (strictly speaking plasma) with a mass of 100 billion tons (about 330,000 times the mass of the Earth) and a diameter of 10,000 km (about 109 times the diameter of the Earth). The angle of the Sun's circle in the sky is 32 arc minutes, which is very close to the angular diameter of the Moon as seen from the Earth, and is a wonderful coincidence (the Sun is about 400 times the diameter of the Moon and exactly 400 times the distance from us), making the eclipse look particularly spectacular.

The eight planets of the solar system all revolve around the sun.

It is recommended that you take a look at the 5th grade Chinese textbook, which contains the answers you want.

The sun is industrious. Never lazy.

Why don't you look at me on top of him, isn't he fragrant? I advise you not to look at you to study hard subject 1111 11 1 1 1 1 1 1 1

The surface of the Sun often has sunspot flares and flares.

Are there any theories about the origin of the solar system that could explain these three things?

1.The distribution of chemical composition between different planets. (The Sun contains small amounts of heavy elements, Venus and Earth contain large amounts of heavy elements, and Saturn and Jupiter also contain small amounts of this element.) )

This can be explained by the Lewis model, where the early solar system was a cloud of gas with an internal temperature higher than the outer temperature. In the inner area, only substances like metals and rocks can be condensed. Thus the planets inside (Mercury, Venus, Earth, and Mars) are mostly made up of metals and rocks.

When you move to a colder outer area, it becomes cold enough, like water ice, followed by ammonia and methane ice condensation.

**: An artistic imaginary diagram of a protoplanetary disk

The reason the outer layers of the gas giants (Jupiter, Saturn, Uranus, Neptune) are made up of lighter components is that these planets will soon be larger than Earth. There are two reasons, one of which is that the outer area is cold enough for the mass to condense.

**: Comparison of the 4 giant planets of the Solar System with the Sun (proportional).

Another reason: ice sticks together better than rocks and metals, so when ice that has congealed into small pieces hits other ice blocks, it tends to create larger pieces instead of breaking up like rocks. Out-of-band planets originate from large planets made up of ice and rock.

Their mass is large enough that gravity allows them to accumulate hydrogen and helium, while the mass of the planets in the belt is not large enough to support hydrogen and helium. They are also not able to reach the current huge proportions in size.

**: The cutouts in these models are meant to illustrate the interior of the giant planet. Jupiter shows that the core of the rock is buried deep inside the metallic hydrogen.

2.The upward direction of Venus's rotation around its axis. (as opposed to other planets).

The old view about Venus (clockwise from the north, not counterclockwise like other planets) is that the influence of the Sun's gravitational pull slows down until its rotation period is equal to its orbital period. This is known as "orbital spin resonance". Mercury has a slightly different type of orbital cyclotron resonance.

However, that doesn't explain why Venus rotates backwards.

**: A night sky by the sea**. A glimmer of light is on the horizon, and many stars can be seen.

Venus is in the center, brighter than any star, and its reflected light can be seen in the sea. This is above the Pacific Ocean, and Venus is always brighter than the brightest stars outside our solar system.

**: The thin, dusty red atmosphere of Mars as seen from space. At the bottom left is the plain of Algiers.

3.The division of kinetic energy (as far as I can remember, the kinetic energy of the sun is less than 2%)

Relevant knowledge

The formation and evolution of the solar system began with the gravitational collapse of a small patch in a huge molecular cloud 4.6 billion years ago. Most of the collapsed mass is concentrated in the center, forming the Sun, and the rest is flattened to form a protoplanetary disk, which in turn forms planets, moons, meteorites, and other small solar system bodies.

**: Ring nebula, a planetary nebula that approximates what the Sun will be