Black Holes

A black hole has a pull of so much gravity light can’t escape its depths. It is like this because of all of the squeezed matter in a single place. They are basically invisible to the naked eye because as I said light can’t escape the black hole. They range in size. Scientists think they can be as small as a single atom or a stellar, which can be as large as about 20 suns or even up to a supermassive, which can be up to 4 million suns. We currently have one at the center of the milky way. Every galaxy has one in the center. The name of ours is Sagittarius. The black holes are made when a star collapses upon itself. This causes a supernova which is an exploding star in space. It can be as bright as 1,000 suns. We currently have nothing to worry about because there is no black holes close enough to do anything to our galaxy and even if there was one it would have to be quite a bit bigger than our sun to do anything to the arrangement of our planets and galaxy.

Smith, H. (2008, August 20). Black Holes. Retrieved November 10, 2011, from Nasa: http://www.nasa.gov/audience/forstudents/k-4/stories/what-is-a-black-hole-k4.html