Lead
The sun is the cradle of human civilization and an important energy source for human social and biological life.
However, the star is getting old, which means that the time for its explosion is getting closer and closer.
So when will the sun explode, and when will the earth when it explodes?
Although the sun is extremely far away from us, when the sun explodes, the apocalypse will eventually come to us.
When the sun will explode.
Different schools of thought have different views on the future of the sun, but they share a common view on how the sun will change from its birth.
One thing that remains unchanged is that the Sun is a yellow dwarf, and it is precisely because of its stable luminosity that our human civilization was able to originate in the habitat of human beings and finally become what it is now.
However, in ancient times, the luminosity of the sun was not stable, the luminosity was very dim, and even modern people could invent simple boilers, and ancient humans did not dare to act rashly, otherwise they would immediately become a block of ice when the sun rose.
And if the sunlight is too bright, it will also cause the earth to become scorched earth.
So the reason why the sun allows living things to survive on earth is precisely because of its stable luminosity.
But the sun, as a star, will eventually grow old and eventually explode and become a red giant.
Therefore, since the birth of the earth, the sun has been shining longer and longer, so by the time the sun explodes, the life on the earth has already been extinct, and the earth has already become a scorched earth.
However, the development of the universe is also unpredictable, and before the sun begins to expand, the light moving boulders in the solar system have been blurred.
The last creatures were wiped out long before the sun turned into a red giant, and the planet that once gave birth to life was completely engulfed by the sun's red giant until the sun turned into a white dwarf.
Many people will ask, when exactly will the sun explode?
How does the sun explode?
What will happen to the Earth after the Sun explodes?
A solar explosion does not actually refer to a nuclear explosion on the sun, but to a supernova explosion.
When a star is more than 8 times the mass of the Sun, it will continue to decay as it depletes the hydrogen it fuses, eventually forming a supernova, and then imploding continuously.
When a certain mass is reached, a black hole or neutron star will form inside.
If the sun explodes before it, then according to the luminosity of the sun, that is, after 8 minutes, the light and heat will reach the earth, and finally the earth will reach the subsequent dust clouds after the sun explodes.
And when the sun expands to a radius of tens of times, the sun's light and heat will also burn the earth into ruins.
The sun also explodes.
The sun has been born for 1.38 billion years, and it has only half of its lifespan, so the sun will grow old in nearly 5 billion years.
If the sun is now in mass and luminosity, when it cools, the sun will become a white dwarf with only one ten-thousandth of the current luminosity.
Therefore, the life span of the sun is still hundreds of billions of years, and after the sun grows old, the universe will finally return to peace.
Until the Sun turns into a white dwarf, the energy freed up is enough to shake the starry sky around it.
In the end, the starry sky it shines on, that is, after the sun turns into a white dwarf, is the true tranquility of the universe.
Even before the Earth is engulfed by the Sun, when the Sun turns into a red giant, the Sun's light and heat will scorch the Earth until the Sun's light and heat are enough to evaporate the water on Earth, and finally the Sun will break down into pieces of smaller mass, which will also move around the Sun and become a planet.
If the Earth becomes a planet and still retains its roundness, when drifting in space, it will collide with other meteors and eventually form a planetary circle around the sun.
The sun will continue to get smaller after the energy released, and at last it will only be a mass of matter without light, and it will also drift in space, and when it encounters a similar matter, they will merge and finally form a new star.
And the Earth will become a lifeless planet without the sun, and as the sun falls, life will gradually disappear.
Finally, after the death of this star, the space around this star, that is, becomes a planet, and finally quietly accompanies the night sky.
This is the cycle of the universe, in which time passes as always.
However, one thing remains constant, the cycle is never-ending.
In ancient times, the mass of the sun was much greater than today, so at the beginning of its birth, the temperature of the sun was also much higher than today.
Therefore, at the beginning of the birth of the sun, it shone on this starry sky with the light of a star.
And this point was discovered by scientists on Earth.
Therefore, the birth of the sun is also in the process of scientists trying to explore the universe, and scientists finally found the sun from the "dust".
And the sun began to accumulate energy in this dust, and finally, this dust shone on the starry sky with the sun's light.
However, such a sun is also very unstable, so the sun is getting worse and worse.
Although such a sun is also full of dangers, the temperature of the sun is relatively low, so life can be born even when the temperature of the sun is relatively low.
But the temperature of the sun is still very low, even slightly worse than the invention of flames.
It was not until 2.3 billion years ago that the temperature of the sun gradually increased, but even if the temperature of the sun increased, it gradually shone on the light boulders in the solar system, and the Earth meteor has only a 1 in a trillion chance that it can be illuminated by the sun.
The catastrophe was 8 minutes later.
The earth has also received the light of the sun, and the sun will also be the cradle of life on the earth in the future.
Originally, the sun was not the name of the star, but the ancients believed that the sun was a god, a god responsible for shining the world.
And the sun means dazzling light.
And the real name of the sun is called the sun star, which the ancients once called "sun", because the clues of the sun in the sky are destined to disappear from the sky one day.
That's why the sun is called by the word sun, and if the word star is used, it means that the sun will always shine in the sky.
This is also inconsistent with the situation in reality, so the sun is also called the sun star.
The east and west of the sun, Ward and Sitapur, were the sun gods in the place where Comrade Sun lived in ancient times, and the place where the sun flower was used to worship the sun.
And the sun is also called the "god of the sun" by some.
The reason why the sun is a star is also because its mass is constantly nuclear fusion, and it is through nuclear fusion that hydrogen and helium are converted into energy that it can shine.
But the Sun is also a different star because it has a smaller mass but is older, so it has a much longer lifespan than other stars.
It also continues this cycle, and eventually it also goes to its end, which is to cool, and finally becomes a white dwarf star without light.
But there is also a school of thought that the explosion of the sun is the same as the explosion of a supernova, the mass of the sun is unstable at the beginning of its birth, so it explodes easily, and a supernova explosion is a form of a solar explosion.
It is precisely because the mass of the sun is so stable that the core of the sun cannot be seen on the surface of the sun, nor can the core of the sun be felt.
Therefore, the core of the sun cannot be through nuclear fusion, but in nuclear fusion, the core of the sun can shine.
It also leads scientists to believe that the sun's core is indeed undergoing nuclear fusion.
Therefore, after the explosion of the sun, it will take 8 minutes for the sun's energy to reach the earth, and after 8 minutes, the violent energy produced by the sun will sweep through the atmosphere, and the earth will become a scorched earth after 3 days.
epilogue
During the explosion of the sun, the high-energy radiation produced by the sun will also sweep across the solar system, and finally radiate to every corner of the universe, and eventually become a ruin.
We can't feel the energy of the sun's explosion, just as we can't feel the energy of nuclear power, the vastness of the universe, the limits of which no one has yet explored.