Introduction: An asteroid hit the Earth 66 million years ago.
This large asteroid, which has a diameter of tens of kilometers, rushed to Earth and finally crashed into the Yucatan Peninsula in Mexico, where it exploded, instantly releasing the energy equivalent to billions of atomic bombs exploding at the same time.
The explosion ignited the surrounding gases to form a dazzling light like a nuclear bomb explosion, and the strong momentum also lifted up the surrounding formations of nearly a kilometer, forming a huge shock wave that was several kilometers high.
And the impact of this asteroid is not only caused by the stone itself, but also the material information it carries.
At the moment of the fall, the formation of the Yucatan Peninsula was an extremely special swamp, which was rich in sulfur.
When it collides with the asteroid's high temperatures, it undergoes a dramatic chemical change.
The first is the dazzling light of the fire that causes the surrounding animals to flee in terror, and the second is the large amount of sulfur dioxide gas released when burning.
Sulfur dioxide gas will undergo a serious acidification reaction when it encounters rainwater, forming acid rain falling to the ground.
The asteroid brought with it so much sulfur dioxide, as well as other gases, that the entire Earth was enveloped in them shortly after the explosion.
These gases block out sunlight, creating a "nuclear winter" that lasts for years.
At this time, not only will the sun not reach the ground, but it will even rain acid from the gloomy sky.
Dinosaurs are invincible to the iron fist of the asteroid.
Both on land and in the ocean, they have been greatly affected by this asteroid impact event.
The first to be affected are the plants.
Plants rely almost entirely on sunlight for photosynthesis, and only when exposed to sunlight can they photosynthesize, produce the oxygen needed for life, and absorb carbon dioxide.
In the absence of sunlight, plants cannot photosynthesize.
In addition to being unable to absorb carbon dioxide and produce oxygen, it also excretes its own organic matter and the organic matter and water produced by the reproductive body, so that it is dry and paralyzed and unable to reproduce.
This massive asteroid collision caused a large area of plant death around the world, and plants traded their lives for oxygen, so that the air after that could still be used by animals to breathe.
And theropod dinosaurs are all carnivorous dinosaurs, such as tyrannosaurus, Scanasaurus, etc.
They have a very strong hunting ability, and their main food is a variety of large herbivorous dinosaurs.
Herbivorous dinosaurs are mainly theropod dinosaurs of the Mesozoic Era, such as Triceratops, Brontosaurus, etc.
They feed on plants and have large bodies that require a large number of plants to meet their energy supply.
But dinosaurs found food more easily than their smaller mammals.
Small mammals are small in size and have limited energy reserves in their bodies.
After the asteroid hit the earth, the sun was obscured in the sky, the plants could not photosynthesize and became extremely dry, and the whole earth was like in the last days, and not even a seed could be found.
Not only that, but the asteroid impact also caused fires around the world, and everywhere you can see the earth in the dirt as if it had just been boiled.
The tree will even burn to ashes in an instant because it withers and burns a little fire.
Small mammals cannot survive in such difficult conditions, which has been proven in later life history.
However, large herbivorous dinosaurs also faced a huge dilemma.
Their food is mainly derived from plants, and when plants wither, they naturally have no food.
At the same time, there are also ground fires, and the dinosaurs must find water in the forests and grasslands to cool down and replenish water, otherwise they are very likely to die from high body temperature and lack of water.
This fire was simply deadly for the dinosaurs.
But there are also more troublesome things.
At that time, the ecosystem on Earth was quite complete during the age of the dinosaurs.
Dinosaurs had natural predators of dinosaurs, such as the Tyrannosaurus rex, the overlord of the dinosaur world, which specialized in eating large herbivorous dinosaurs, while various small carnivorous dinosaurs captured small herbivorous dinosaurs.
There were also dinosaurs of various birds of prey that caught small flying insects and small reptiles, and there were even small insectivorous dinosaurs that resembled today's herbivores.
This made the ecosystem of the age of dinosaurs extremely stable, and the food chain was complete and coherent.
But the asteroid impact made the plants extinct, and the dinosaurs were too big to run away quickly, not only facing a lack of food, but also natural predators.
Under such a catastrophe, it didn't take long for the dinosaurs to be threatened with extinction, and almost all dinosaurs were unable to reproduce under the extinction event caused by the asteroid, ending the dinosaur era that had been noisy for tens of millions of years.
Small mammals were also affected, but it was very likely that they would have survived the carnivorous dinosaurs or even the small herbivorous dinosaurs, and many of the smaller mammals had gone into hiding without even knowing what was happening during the meteorite impact.
The asteroid is crooked a little and may not be human.
The asteroid that led to the extinction of the dinosaurs was actually very fortuitous, as it was very close to Pluto, the outermost part of the solar system, when the asteroid entered the solar system.
However, since the celestial bodies in the solar system have their own gravitational pull, an asteroid like Pluto will affect its orbit whether it attracts or is attracted by other asteroids.
So when the asteroid reaches Pluto's vicinity, there is a mutual gravitational pull with Pluto.
After the asteroid is affected by the gravitational pull of other asteroids, its trajectory changes and becomes closer to the center of the solar system.
As a result, after a period of time, the asteroid is getting closer and closer to the center of the solar system, and eventually becomes a place similar to the current position of the Earth, and is directly attracted by the gravitational attraction of the center of the solar system to the Earth.
If the asteroid hadn't changed its trajectory when it approached Pluto, or if its gravitational pull wasn't as strong, the asteroid probably passed near Pluto.
This makes it very unlikely that the asteroid will end up hitting Earth.
Without an asteroid hitting the Earth, the dinosaurs would have become much less likely to become extinct, and might even become a large branch of the species in subsequent generations.
Whether the earth will be human at that time is unknown.
But even if an asteroid hits Earth, the dinosaurs won't all go extinct.
This is because when an asteroid hits the Earth, it will not be facing the Earth head-on, thus knocking the entire Earth apart, but will hit it at an oblique angle.
When the asteroid falls, the energy released is huge, and the shock wave rushes into the sky with huge black smoke, and the shock wave hits the sky and scatters in the sky to form a large mushroom-shaped shock wave.
And the gas ejected after the shock wave obscured the sunlight, shrouding the whole earth in shadow.
As a result, the temperature plummets, resulting in widespread snow and ice cover, which prevents plants from growing and even turns some temperate regions into cold zones.
But on the earth today, we can clearly feel that the changes of the earth are regular.
Because there are also asteroids on Earth today that are circling in their orbits.
Some asteroids hover for a long time and then slowly fly towards the center of the solar system on their own.
The orbits of these asteroids can actually be calculated.
We can also use these calculations to predict whether these asteroids will eventually hit the Earth.
Because of today's very high level of science, the chances of these asteroids hitting the Earth have dropped to such a small size that there is no need to worry about such a problem.
But this begs another question.
Even if the probability of these asteroids hitting Earth is small, it is still a probability.
What if an asteroid does hit Earth one day in the future?
This has to attract people's attention.
Even if humanity does not become extinct due to the impact of an asteroid, can humanity withstand the consequences?
The consequences would have been catastrophic.
How to mitigate this impact has become a very important issue.
epilogue
An asteroid hit the Earth, causing the extinction of the dinosaurs.
The impact of this asteroid not only caused a huge ecological impact, but also provided an opportunity for the rise of mammals later.
It can be said that it indirectly contributed to the emergence of human beings, so the emergence of human beings was based on the consequences of the extinction of the dinosaurs.
This world is truly magical, and life is extremely tenacious.
Even though the dinosaurs went extinct, there was still life on Earth.
And even prosper and develop later, which is enough to see the resilience of life.