Term ‘Black Hole’ is not new for us, thanks to the Hollywood Sci-Fi movies and social media.
As human beings, it is in our nature to form myths and stories about what we do not understand; Pyramids of Egypt, Bermuda Triangle, Aliens and Supernatural are all examples of such human psychological behavior. Black Holes are also among the mysteries of this vast universe that we come to know just about recently after the advancement of technology, and technology shall help us to get more answers.
Black holes, white holes and worm holes are just a single part of the enormous universal fantasies, or maybe facts. Universe is cosmic world of endless possibilities. Black holes are basically the invisible massive and larger than sun objects in space with strong gravitational pulls. The gravitational pull is so strong that any object that get near it has no chance to break away. Nothing can escape a close encounter with a black hole, not even light. The sphere shaped edge of black hole is called event horizon. It is like a round water fountain where water is falling in the central hole from all sides. One popular misconception we see in science fiction that black holes are like vacuum cleaners, sucking everything that pass by; in reality, black holes sit silent until something extraordinary happens. But when a star gets dragged in, it gets obliterated.
Black holes are powerful and dense masses in the space and hidden from human eye. There are three main types of black holes: supermassive, stellar and miniature. The supermassive black holes are found in the center of the galaxy with strong gravitational pull that absorbs stars and any other objects inside. The stellar black holes are created when a giant star, 10 times the size of sun, runs out of fuel and dies. A miniature black hole is based on big-bang theory and only appeared when Universe expanded at fast rate. Small sun size stars cannot make black holes, they become small planets when they run out of fuel.
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The mystery also provokes us to ask what do black holes do? They are invisible objects that consume matter in space and dependent on other objects in the space. Black holes are difficult to identify because they cannot be observed from earth in the same way like stars and planets. Astronomers, with the help of high tech equipment, indirectly study black holes and look for dense mass and amount of other objects (stars, meteoroids) surrounding it. Our galaxy contains hundred million of these black holes.
Till to date, there are so many theories related to black holes but no one knows the exact facts. Black holes also give rise to concept of worm holes that opens up a breach for space travel, but this theory is rejected by many scientists because the breach opens up for very short time and shuts down quickly by obliterating everything in between. Black holes are some of the most fascinating and thrilling objects in the universe. The future research will help us unravel black holes’ relation with stars and galaxies and push us forward to unveil the mysteries of the universe.
How big can a black hole be?
- Stellar black holes – size of 10-100 Suns
- Supermassive black holes – Size of million and billions of suns
- Supermassive black hole identified in the center of our milky way was equal to the size of 4.3 million suns.
Here is a video documentary of latest information about blackholes
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