A black hole is a region is a region of space with a massive gravitational pull from which neither matter nor radiation can escape.
Black holes do pose to be one of the most mysterious and fascinating objects on the planet. They are very strange.
The name, "black hole" was coined by John Wheeler, and American Astronomer and first predicted by the great scientist Albert Einstein in his relativity theory.
The first black hole was discovered in 1971.
When a black hole is formed, the gravitation pull within is so strong that it pulls materials such as dust and gas towards itself while growing in size.
Black holes are of three sizes, namely; the intermediate, supermassive and stellar black holes.
Source
Supermassive black holes are the largest type of black holes, and they dominate the universe. They are found at the centre of most of the large galaxies in the universe, the Milky Way included.
Black holes were originally perceived to be of small and very large sizes but the intermediate black hole is an average fit and is formed by the collision of stars in a chain reaction.
Nothing can escape from a black hole, the gravitation force in it is just too strong. Even Light is not spared, if absorbed, is retained in with all other things.
The singularity of a black hole, which is the inner region is the single place where it's mass is concentrated. If you have read Dan Brown's book, titled "Angels and demons" or if you are a quantum physicist, then you must have heard of antimatter or antiparticle. For every particle, there is an anti-particle, and when those two particles meet, there is annihalation.
The black hole has three layers, the inner event horizon, the outer event horizon and the singularity.
Now, what would be your guess as to what would happen to a human being if he fell into a black hole?
According to a Nature study in June, 2012. It is believed that quantum reaction would cause the individual to light up (catch fire), burning the person to death in an instant.
If a Star were to pass two close to a black hole, it would undoubtedly fall into it!
The black hole is formed by the collision of two stars. and as I earlier mentioned, a black hole is present at the middle of the milky way, I wonder, is that a threat to our planet? Let's see!
The mass of this black hole in the milky way has been reported by scientists to be about 2.6 million times bigger than that of the Sun, but it is about 25,000 light years away from the earth. This means that the earth is not even in the outer event horizon of the black hole and so this black hole does not post a threat to us!
There have been speculations that towards the end of the Sun's life, it would explode and turn into a black hole! However, there is no need to worry for the earth wouldn't also be in the outer event horizon of that supposed black hole and would continue to orbit around it, as would every other planet.
Thanks to @sirknight for this opportunity to share!
Thanks for reading guys!
This is really educative. I read the Angels and Demons too. Also the entire Dan Brown Novel series. Black holes are actually the real definition of darkness, not even light is spared.
Right on! @mechanicalpip light gets trapped in the outer event horizon. It's really fascinating stuff!
Love Dan Brown......he is a rili good writer.
Yes, that he is! I have read most of his published books and it's always fascinating how he manages to capture the mind of his reader, you just don't think about anything else until you're done with the story.
Whew, I'm glad to know we are the in outer event horizon and won't be gobbled up by a black hole. I love celestial reads and am fascinated by astronomy. Love this post!
We met on Discord the other day. Wanted to stop by and say hi. :)
we are actually NOT in the outer event horizon, if we were, then we would already be in the black hole.
Very nice of you to stop by. I also love the celestials. Guess that is one of the things we also have in common. :DThank you! @beeyou