Aside from Apophis, will there be a celestial body larger than it that threatens us in the next cent

I don't know if I'm talking about Apophis, but American scientists have discovered that a meteorite should rush towards the earth in 2025, maybe it will pass by, maybe it will hit it.

In order to avoid following in the footsteps of dinosaurs, human beings have always paid special attention to various celestial bodies in the sky that may rush to the earth. Among them, Apophis, the god destroyer, is well-known to many people, but in addition to it, there are 3 other planets that may also pose a certain threat to the earth. Recently, the European Space Agency (ESA) announced 4 asteroids that may be dangerous to the Earth.

Regarding these four asteroids, let's make a comparison in order of volume from smallest to largest.

The first asteroid, 2010 RF12, with a diameter of about 6-14 meters and a mass of about 500,000 kilograms, is now about 200 million kilometers away from the Earth, and is currently heading towards the Earth at more than 10,000 kilometers per hour, and is expected to approach the Earth by the end of the century.

The second asteroid, 2000 SG344, has a diameter of about 27 meters and a mass of about 70,000,000 kilograms. Since its orbit is similar to that of the Earth, both revolve around the Sun, there will be a day when it will come close to the Earth again.

The third asteroid, Apophis, has a diameter of about 400 meters and a mass of about 46000000000 kilograms. Scientists estimate that it will fly over the Earth in 2029, about 30,000 kilometers away. Fortunately, the probability of a collision is extremely small, because if it does, it will release the energy generated by about 15,000 nuclear bombs**, about 6,000 trillion joules, a level of horror that is simply indescribable.

The fourth asteroid, 1979xb, is about 900 meters in diameter and very massive, and it is now traveling through the solar system, and in less than a second it is getting closer to the Earth by dozens of kilometers. Probably in 2050, it will reach the closest point to the Earth, but because its orbit is not stable, it may brake or accelerate at any time, and the threat should not be underestimated. It seems that at that time, they will only pass away from afar, and will not have a drastic impact on us.

In many scientific reports, the asteroid Apophis has been described by astronomers as a "terrible enemy". In their minds, a war to defend the planet is inevitable.

On April 13, 2029, a Black Friday, millions of people will be outside, looking up and secretly rejoicing in their good fortune. Because, that day, the asteroid "Apophis" will pass the Earth at an altitude of 30,000 kilometers, like a meteor speeding across the night sky.

But don't be too happy, when the asteroid Apophis passes by the Earth in 2029, its orbit will change due to the Earth's gravitational pull, a change that will cause it to turn around and collide with the Earth in seven years. The speed of impact at a kilometer per second will have a tremendous destructive force: enough to make Texas disappear in the United States, or to make two European countries disappear; If it lands in the ocean, it will cause a devastating tsunami, which will be even more violent than the 2004 Indian Ocean tsunami.

In such a devastating impact, any living thing on Earth is in a catastrophe. At the "Symposium on Asteroid Security" in Russia, astronomers have made a model that assumes that "Apophis" hitting the Pacific Ocean will set off a 200-meter-high wave, and the dust kicked up by its shock wave will envelop or cover most of the Earth, where plants, animals and humans will die because of the severe cold and the destruction of living space.