What is a black hole you may ask? Well, it is an area in space that is incredibly dense, having an insane amount of mass in a small area. Creates a gravitational field so strong that not even light has a chance of escaping once it is caught in the black hole’s grasp. They were first predicted to exist in 1916 by Albert Einstein, with his theory of general relativity, however the first one was not discovered until 1971. This strange power leads them to be one of the most fascinating things in the universe to both scientists and regular observers alike. They are very hard to see though, as they do not give off light themselves and can blend into the background of space. Scientists can only see them from the radiation that is given off as the black holes pull in the gas and dust around them. Another way they can be see is when sometimes matter is ricocheted off the outside of the black hole and pushed outwards at astronomical speeds, leaving trails of material for the scientists to track. This phenomena may also be why some people believe that a black hole is a portal to another dimension. …show more content…
A supernova is an enormous explosion that usually happens at the very end of a star’s life cycle, happening as the result of a change in the core of a star. This change can happen in two ways, with the first occurring in binary star systems, in this system one star, usually a white dwarf steals matter from the other star. Eventually it will have sucked up so much matter that it can't handle any more and explodes in a huge bright flash, a supernova. The second way a supernova is formed is when a star runs out of nuclear fuel, some of it’s mass starts flowing into the core, eventually the core has too much mass and the core collapses on itself, resulting in an
Starting with black holes, Khalili describes the creation of one. I found that a black hole is what remains when a massive star dies. Because stars are so massive and made out of gas, there is an intense gravitational field that is always trying to collapse the star. As the star dies, the nuclear fusion reactions stop because the fuel for these reactions gets burned up. At the same time, the star's gravity pulls material inward and compresses the core. As the core compresses, it heats up and eventually creates a supernova explosion in which the material and radiation blasts out into space. What remains is the highly compressed and extremely massive core. The core's gravity is so strong that even light cannot escape. This object is now a black hole and literally cannot be seen because of the absence of light. Because the core's gravity is so strong, the core sinks through the fabric of space-time, creating a hole in space-time. The core becomes the central part of the black hole called the singularity. The opening of the hole is called the event horizon. Khalili describes that there are two different kinds of black holes:
Black holes are thought to be a portal to another dimension or a way for time to slip. Mainly all these theories follow the laws of physics and do not cross any illogical possibilities. For a way in which we can achieve any of these would be through many more years of research. If even physically possible for any of these hypotheses to coexist with one another. Learning that there’s a possible way for black holes to allow time to lapse or elapse. The study has been a challenge, finding ways in which these ideas could work. Theories about space time are not always true, but they allow us to have an improved understanding towards the, what ifs.
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)
A supernova remnant is a cloud of gas created in the explosion of a star as a supernova. Located 6,300 light years away, the Crab Nebula (M1) is one of the most famous supernova remnants and is one of only a few historically observed supernovae in the Milky Way Galaxy. It is specifically located at right ascension 5 hour...
Pulsars, on the other hand, are the remnants of stars that were once ten times the size of our sun. When these stars come to the end of their life, they supernova and leave only a super dense mass called a neutron star or pulsar. These formations are called pulsars because they emit a radio signal and rotate in such a way that it looks as if they are pulsing. Now, it is on to greater things. Let’s get specific with both of these amazing celestial formations.
A Black Hole is defined as an object in space that is so compact, that has a gravitational pull so powerful, not even light can escape its pull. In most cases Black Holes are formed when a massive star (much larger than our own) undergoes a supernova explosion. When this happens, the star may collapse on its own gravitational pull, thus resulting in a an object with infinitely large density and zero volume. As a result, the escape velocity (the speed required to escape the gravitational pull) becomes even greater than the speed of light, and because nothing can travel faster than the speed of light, nothing can escape a black hole.
Black Holes are referred to stars, and nothing from light or any kind of matter is able to escape the gravitational pull of that Black Hole. Black Holes are the last of the line after Neutron Stars and White Dwarfs. Black Holes are about 10-15 more times/massive than the own Sun itself. When the Black Hole reaches its final "stage" they blow up into also known as a supernova. Most of the debris is left behind as well which fusion can no longer take place. The Black Hole will collapse or close on itself if no force is to the opposing gravity. Nuclear fusion creates some energy and some pressure with the Gravity of the Black Hole. So with no force, the Black Hole shrinks to zero volume. Black Holes pull in all kinds of matter. Black Holes are small, but you wouldn't think they would be. They may be small but they have the energy to suck things up into themselves. A usual diameter of a regular black hole is 4 times the diameter of the sun. With the cause of them being small, distant, and dark, they wouldn't be able to be seen or observed. Now if you get too close to one, you may die. So black holes are still a mystery to be solved. Black Holes are massive in weight and they get bigger the more matter they suck up/ absorb. Black Holes are like the sibling(s) to wormholes. Blac...
Black Holes The term black hole was first used in 1969 by the American scientist
Every day we look into the night sky, wondering and dreaming what lies beyond our galaxy. Within our galaxy alone, there are millions upon millions of stars. This may be why it interests us to learn about all that we cannot see. Humans have known the existence of stars since they have had eyes, and see them as white glowing specks in the sky. The mystery lies beyond the white glowing specks we see but, in the things we cannot see in the night sky such as black holes.
A star is created by a huge moving cloud that’s made from hydrogen and helium. Gravity pulls the cloud inward, and it gets smaller and denser. When it gets smaller it starts to spin faster. The outsides of the cloud turns into disks, and the insides turn into clumps. The material starts getting hot and dense.
This is because Black Dwarfs, unlike black holes, do not cause gravitational lensing that would result in the manipulation of space around them, making them virtually invisible. However, this does not mean that they do not have a gravitational pull, it simply means that their gravity is not strong enough to alter the world around them. However, they are relatively easy to understand “A black dwarf is simply white dwarf that has cooled down to the temperature of the cosmic microwave background [CMB]” (Tate). Once a star has become a White Dwarf it is no longer fusing elements, therefore it has no source of internal energy, and only shines because it is still extremely hot. If a White Dwarf becomes a Black Dwarf at 5°K (-450.67°F), the temperature of the CMB, it would take one quadrillion years, or a one with fifteen zeros after it, (1,000,000,000,000,000) for a newly formed White Dwarf to become a Black Dwarf. White Dwarfs live for such a long time because they only cool via radiation (Tate). Meaning energy is only released by means of particles or waves, unlike an object such as the Earth which releases energy by radiation, convection, and conduction. This extremely slow cooling process is the main reason why Black Dwarfs are so rare and the chances of discovering one in the vastness of the universe are remarkably tiny. For these reasons not a lot is known about Black Dwarfs, but as science advances maybe the world’s knowledge of them will advance
Einstein himself, working at Princeton with Nathan Rosen had discovered that the equations of relativity actually represent a black hole as a bridge between two regions of flat space-time, a phenomenon known as the “Einstein-Rosen Bridge”. Later on, in 1963, the New Zealand mathematician Roy Kerr found that if a black hole is rotating, a singularity still forms, but in the form of a ring, not a point. It was believed that in principle, a particle may be able to fall towards the singularity, but if at some point moved through the hole instead of the ring, the particle may not be lost forever. Therefore, with these theories in mind, a particle falling into a black hole will fall through the ring that the singularity has become, then going through the Einstein-Rosen Bridge, eventually being spewed out of the white hole into another space-time continuum.
The word supernova is plural for supernovae or supernovas. The definition of a supernova is any violently exploding stars after eruption suddenly increases many millions of times its normal level. The supernova came around the 1930’s by Walter Baade and Fritz Zwicky. Supernovas are very rare to see they happen every 50 years in the Milky Way. Supernovas cannot be predicted in our galaxies it is impossible.(“Supernova”)
Stars are born in the interstellar clouds of gas and dust called nebulae that are primarily found in the spiral arms of galaxies. These clouds are composed mainly of hydrogen gas but also contain carbon, oxygen and various other elements, but we will see that the carbon and oxygen play a crucial role in star formation so they get special mention. A nebula by itself is not enough to form a star however, and it requires the assistance of some outside force. A close passing star or a shock wave from a supernova or some other event can have just the needed effect. It is the same idea as having a number of marbles on a trampoline and then rolling a larger ball through the middle of them or around the edges. The marbles will conglomerate around the path of the ball, and as more marbles clump together, still more will be attracted. This is essentially what happens during the formation of a star (Stellar Birth, 2004).
Supernovas are extremely powerful explosions of radiation. A supernova can give off as much energy as a Sun can within its whole life. A star will release most of its material when it undergoes this type of explosion. The explosion of a supernova can also help in creating new stars.