Back holes
Black holes
When the word black hole pops to mind our initiative thought is literally a black hole with no end. What is really the definition of a black hole? A black hole is a point in space in which gravity pulls in a drastic matter that not even light can exit. Not even human’s vision is capable of viewing these holes. We only take notice as stars around black holes act differently than other stars in space. We can only ask questions such like; when they were theorized? How big they are? How are they are created? Are they actually black? Could they affect Earth in any way? Black holes are still being researched and there are still many questions to be answered.
In the late 1790s, John Michell and Pierre LaPlace independently suggested the existence of an “invisible star.” They both calculated the mass and size which is now called the “event horizon” that an object needs in order to have that certain escape velocity greater than the speed of light.
A black hole can be any size. In fact it could be large or as small as an atom. There might be three types of black holes: stellar, supermassive, and intermediate black holes; their mass is quite large which indicates the amount of matter it has. As you know, Earth’s galaxy is called the Milky Way. Many “stellar” black holes are located in our galaxy. This is a certain kind of black hole which has the mass up to twenty times more than the sun. Our largest black holes are called “super massive.” These black holes are more than one million suns together. They’re located at the center of every large galaxy. These holes are called “Sagittarius,” and have a mass of about four million suns.
Black holes have been around ever since our universe was created. Scientists have discovered that stellar holes are created when a big star collapses. This causes a “supernova,” which is a star that explodes part of itself into space. “Supermassive” black holes were made at the same exact moment as the galaxy
When the word black hole pops to mind our initiative thought is literally a black hole with no end. What is really the definition of a black hole? A black hole is a point in space in which gravity pulls in a drastic matter that not even light can exit. Not even human’s vision is capable of viewing these holes. We only take notice as stars around black holes act differently than other stars in space. We can only ask questions such like; when they were theorized? How big they are? How are they are created? Are they actually black? Could they affect Earth in any way? Black holes are still being researched and there are still many questions to be answered.
In the late 1790s, John Michell and Pierre LaPlace independently suggested the existence of an “invisible star.” They both calculated the mass and size which is now called the “event horizon” that an object needs in order to have that certain escape velocity greater than the speed of light.
A black hole can be any size. In fact it could be large or as small as an atom. There might be three types of black holes: stellar, supermassive, and intermediate black holes; their mass is quite large which indicates the amount of matter it has. As you know, Earth’s galaxy is called the Milky Way. Many “stellar” black holes are located in our galaxy. This is a certain kind of black hole which has the mass up to twenty times more than the sun. Our largest black holes are called “super massive.” These black holes are more than one million suns together. They’re located at the center of every large galaxy. These holes are called “Sagittarius,” and have a mass of about four million suns.
Black holes have been around ever since our universe was created. Scientists have discovered that stellar holes are created when a big star collapses. This causes a “supernova,” which is a star that explodes part of itself into space. “Supermassive” black holes were made at the same exact moment as the galaxy
Citations: Smith, Heather S. “What Is a Black Hole?” www.nasa.gov. N.P. 30 Sep. 2008. Web. 12 Apr.2014 Hendry, Paula; Greg Helms. “No escape: The truth about black holes.” Amzing-space.stsci.edu N.P. 10, Jan. 2013. Web. 12 Apr.2014 Taylor Redd, Nola. “Black holes: Facts, Theory&Definition.” Space.com N.P. 08 Feb.2013. web. 12 Apr.2014 Bunn, Ted. “Black holes FAQ” cosmology.berkely.edu N.P. Sep.1995.web.13 Apr.2014