At some point in everyone's life they look up into the sky and think to
themselves “I wonder what's out there.” Scientists at NASA have taken this a few
steps further. They have scoured the skies for hours on end in search of the
elusive creatures we refer to as black holes. Black holes come in a variety of
different sizes such as the small and super-massive. By now you may be thinking,
“Where are the medium sized black holes?” Well according to new data, found by
those same scientists that stare at the sky for hours, they do exist and in larger
numbers than expected.
First off, the small and medium sized stars in our universe produce most
black holes, so there must be a chance of medium sized black holes right.
NASA's leading
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(Properties of Black Holes) The size of these objects or
black holes can vary depending on the star that gave birth to it.
According to NASA, "new evidence... strengthens the case that two mid-
sized black holes exist close to the center of a nearby starburst galaxy.” In
previous years, only small and super massive black holes had been observed.
These mid-sized black holes are the window into exploring black holes, how
they're formed, and how they first came into our universe. Mid-size black holes,
while they seem irrelevant in nature are vital in the advancement of science. If we
can greater understand how these mid-sized black holes are formed then it will
blast a hole in the side of the wall that we call black hole theory.
Black holes are rather mysterious creatures, we rarely see them, but they
are always there. The first black hole that was discovered was Cygnus X-1. This
black hole was only an ordinary small size to us today, but back in 1970, it was
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The first evidence for these medium black holes came about when groups
of astronomers were looking over some old probe data. ("Survivor" Black Holes
May Be Mid-Sized) They came across some strange x-ray readings that lead to
them to discovering the first mid-sized black hole. It measured at about 428 solar
masses, or the mass of 428 suns.
The mass of a black hole is measured based on how much more dense it is
in comparison to our own sun, the center of our solar system. Small sized black
holes are usually about 3 times larger than our sun, and supermassive black holes
can be up to 12 billion times bigger than our sun. (Black Holes and Wormholes -
The Physics of the Universe) These Of Corse are the extremes of both sides
giving the widest look at just how big these universal entities actually are.
While small sized black holes are very small in size and supermassive
black holes are large in size mid-sized black holes are quite different. The first
black hole measured was about 428 times bigger than our sun. When this data is
compared with the data from the supermassive black holes, they seem a bit
... For, even if one would see an alien or even just a spacecraft, it would not have enough credence to prove beyond another person’s quizzical denial. Hence, bringing me back to my original issue, if someone really did see this phenomena where are these other people? I believe we will never know the answer regarding extraterrestrials until there is a national revelation of some sort. Once again, the skeptics are left waiting for an answer.
Until recently, theorists believed that wormholes could exist for only an instant of time, and anyone trying to pass through would run into a singularity. But Khalili shows the reader that more recent calculations show that a truly advanced civilization might be able to make wormholes work. By using something physicists call “exotic matter,” which has a negative energy, the civilization could prevent a wormhole from collapsing on itself. Perhaps someday in the far future, wormholes will become a useful asset in universal transportation.
Death by Black Hole: And Other Cosmic Quandaries explains about his ability to blend content, accessibility, and humor, Tyson is a natural teacher who simplifies some of the most complex concepts in astrophysics
The origins of the super-massive black holes which concludes how they were formed and what caused them to form is an unsolved problem which is yet a mystery of astrophysics. ( Millis 2014)
The idea of Black Holes was first proposed in the 1700s by scientists John Michell and Pierre-Simon Laplace, who argued, independant of each other, that there might be objects in the universe with such a large gravitational force, that even light could be trapped. Published in 1916 Einstein’s theory of general relativity which included how gravity does affect light’s motion, gave way to scientific discoveries involving black holes. In Einstein’s own theory, he was only able to approximate the solutions to some of his own equations, however Karl Schwarzschild was able to provide the solutions. These solutions described objects like black holes that had such massive density that nothing could escape them. Schwarzschild theorized that if an object had such a small radius, that the escape velocity will be greater than the speed of light. Because as previously mentioned, nothing is faster than the speed of light, the object would be sucked into itself by it’s own gravitational pull, which would cause the object to disappear. What r...
Karl Schwarzschild is credited with being the brilliant astronomer who developed the concept of black holes. In 1916, using Einstein's general theory of relativity, he began to make calculations about the gravity fields of stars. He concluded that if a huge mass, such as a star, were to be concentrated down to the size of an infintessimal point, the effects of Einstein's relativity would get really fairly extreme. Schwarzschild doubted that a star could get that small, and theorized that if a star did infact shrink upon itself like that, its gravity would remain the same and the planets revolving around it would remain in the same orbits they always had. Since then however, some of Schwarzschild's theories have been disproved, but most of his initial theories hold intact today. The Schwarzschild Radius, the maximum radius a body with a specific mass can have that won't let light escape, is named in his honor, and the equation of which is still in use today: Rs=2MG/(c^2)
Black holes have been theorized since 1916. However, no scientist has ever discovered a black hole in certainty. In theory, A black hole is created when a star of three or more solar masses collapses. “One solar mass is equal to the mass of the sun,” (Mclintock 1). A star collapses when the outward push of the combustion reaction no longer has the required forces compete with the inward pull of gravity. Most astronomers believe that the Milky Way contains millions of theses invisible devils, which are massive stars that have collapsed. In theory, anything could become a black hole if it were simply compressed into its Schwarzschild radius. For instance, Mount Everest has a Schwarzschild radius that is less than a nanometer, but there is “no known way to compress an object like Mount Everest into it’s Schwarzschild radius,” (Vsauce 1:05). Black holes also have a radius that is referred to as the event radius. The event radius which is used to measure the size of a black hole is normally reported in kilometers. Because of the fact that black holes are impossible to see or even to touch, most scientists refer to black holes and science fiction. However, black holes should no longer be thought of as science fiction due to the arguments concerning their signs, their ability to be orbited by heavenly bodies, and what happens when matter crosses into one.
When you look up the sky all you see is a blue sky or maybe a moon and stars, but Consolations makes the audience think twice. What if the biggest problems we all have weren’t even a deal in another universe? What if the universe we live in is just one out of all the other universes we leave out? Now look up
Just recently a major discovery was found with the help of a device known as The Hubble Telescope. This telescope has just recently found what many astronomers believe to be a black hole, After being focuses on a star orbiting empty space. Several pictures of various radiation fluctuations and other diverse types of readings that could be read from that area which the black hole is suspected to be in.
Geologist John Mitchell is credited with first devising the idea of a black hole. He said that if some force could compress the sun down to an small enough size, it would have a gravitational field so strong, that one would need to be going faster than the speed of light to escape it (UTFC). All objects in the universe have what is called a schwarzschild radius. An object’s schwarzschild radius is the radius that an object would have to be compressed into in order to have an escape velocity greater than that of the speed of light, or a black hole. (VSBH). Using the earth as an example, if the entire earth was compressed to the size of a peanut, it would become a black hole (VSBH). Earth would then have a gravitational field so strong that not even light could escape it. However there is no known force that can compress earth down to such a small size.
The Sun is a huge, bright sphere that is mostly made up of gas that is about 5 billion years old. The Sun is the closest to the Earth, it is 145 million km distant (this distance is called an Astronomical Unit). The next closest star is 300,000 times further away. There are probably millions of similar stars in the Milky Way galaxy (and even more galaxies in the Universe), but the Sun is the most important to us because it supports life on Earth.
Black holes happen when a star with a great mass dies and becomes a supernova. The star couldn’t handle the energy so it explodes. There is still a lot of things we don’t know about black holes. Black holes have such a strong gravitational pull that nothing can escape it, not even light so black holes are completely invisible but, scientist are able to see how they affect planets around them with special telescopes and are able to find them. Black holes can be any size, the smallest is the size of an atom with the mass of a large mountain and the largest has a mass equivalent to 17 billion suns. Everyone thinks that anything that gets close to a black hole will get sucked up nut, in reality the majority of things don’t, a lot of it just ends
Black holes have been confirmed since 1971, however, Einstein's theory was the basis for these following discoveries. Another misconception is that black holes do not “suck” the mass away, this is because the gravitational pull is the reason why the object in entering the black hole to begin with. If anything the action would be called falling, as that is much more fitting. Since black holes absorb light, you may wonder: how can we see them? The answer is pretty self-explanatory, we can not see black holes. How do you find black holes? If you cannot see them then how do you know they even exist? Black holes are located by the changes in gravity they cause in space.We cannot see black holes, but we can clearly see the changes they make. For example: one of the more recent discoveries in astrophysics points to supermassive black holes being more common than we presumed. “While finding a gigantic black hole in a massive galaxy in a crowded area of the universe is to be expected – like running across a skyscraper in Manhattan – it seemed less likely they could be found in the universe’s small towns.” is the response to the supermassive black hole found in a much smaller section of the universe. The size of this giant was estimated at 17 billion suns, while the record is resting at 21 billion. With supermassive black holes being found in the more “rural” areas of the universe,
Black holes are the result of the death of a massive star, leaving behind a dense remnant core that eventually collapses to create a gravitational force so strong that nothing, including light, can escape the force. The theory that black holes existed started back in the early 1900s and since then astronomers and scientists have been trying to get a better understanding of them. This phenomenon has been a working progress for astronomers and scientists for many years and as we develop a better understanding of our solar system, the more likely it is to make a significant discovery that can answer some of the most difficult questions about our incredible galaxy and solar system. The more information we are able to acquire about our universe, the more questions we might be able to answer about our existence. With advancements in technology we may be able to see some significant discoveries and insights into the world of black holes.