If the Sun collided with a black hole, it would undoubtedly lead to the irreversible end of our solar system. A black hole is not very different from any other object that has mass, but it is very dense and has a very strong gravitational pull. And that would be fatal to the Sun. Watch a video simulating this event.
If a black hole were on a collision course with our Sun, we would have no choice but to watch everything disappear until we too ended up at the black hole’s epicenter. But how exactly this collision would play out is shown in this impressive and very interesting video:
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Source: Youtube
Most black holes are the remnants of massive stars from which they have retained a strong gravitational pull. All the matter that a black hole has is compressed into an infinitesimally small point at its center. This point is called a singularity, and the more matter that is squeezed into the singularity, the stronger the black hole’s gravity.
Stray black holes and their unruliness
The amount of black holes is undefinable. There may be as many as 40 quintillion of them in the observable universe, many of which are located at the centers of their galaxies. The black hole best known to us is Sagittarius A*, which is closest to Earth and stands right in the center of its galaxy, right in the center of the Milky Way.
But a black hole can become uncontrolled, which means that, for example, after two galaxies collide, it can break free and start wandering. There could be 12 wandering black holes in our galaxy, and one of them could be heading towards the Sun right now. What would this procedure look like?
First, the errant black hole would enter the Oort Cloud, which is a sphere of icy objects surrounding the Solar System. Due to the presence of a black hole, icy bodies in this region would be thrown out of their orbits by its gravity.
The black hole would gradually suck up the Sun.
The black hole and its influence on Neptune and Uranus
We could thus see a black hole near the ice giants Neptune and Uranus, and that only with a powerful telescope. It would also be possible to observe how the gases are withdrawn from these planets. The gases would then form an accretion disk around the black hole, or a superheated collection of gas and dust, which would orbit around it. In this way, it would also increase in size, so in time it would swallow up Jupiter and Saturn as well. On these planets, it would already be possible to observe the entire destruction with the naked eye. Even the inner planets, Mars, Venus and Mercury, would be pulled into the black hole and destroyed into nothingness.
Interestingly, however, our Earth would be essentially spared and the black hole would focus on the Sun.
Black holes make scary noises. They were caught. Listen to them
reading for 4 minutes
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Focused on the Sun
The strong gravity of the black hole would begin to pull matter from the Sun, which would look similar to the winding of wool into a ball. A huge amount of gas would be torn away from the Sun, which would be drawn into the black hole and join the accretion disk. The sun would thus be gradually torn apart into nothingness. Only a cloud of gas would be left behind.
As the sun’s mass was absorbed, deadly amounts of ultraviolet and X-ray radiation would be released in fiery explosions, which would be hurled directly at Earth. It would reach us in just eight minutes. The black hole would become extremely bright, about a trillion times brighter than the Sun.
The stability of our solar system would be destroyed and a new gravitational balance would be established. Earth would experience numerous strong earthquakes, volcanic eruptions, and tsunamis until Earth was torn apart or ejected from the solar system.
So we too would be pulled directly into the accretion disk along with the rest of the matter in the Solar System. Humanity and our lives, along with everything on Earth, would end up in a black hole.
Resources:
whatifshow.com, astronomy.stackexchange.com, whatifshow.com
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