Black Holes

By: Lizi S.

What is a Black Hole?

A Black Hole is a region of space, with a gravitational force so strong, that nothing can escape it. A Black Hole is also invisible because it traps light. You can't physically see a Black Hole because it traps light, but you can see the effects nearby. The mass or material of Black Holes, has been squeezed so hard to the extent where it vanishes.

Formation of Black Holes

Black Holes form when a star runs out of nuclear fuel, and is crushed by it's own gravitational force. When the star burns fuel, it creates an outward push that encounters the inward pull of gravity. If a star doesn't have enough fuel, it cannot hold its own weight; which results in the core collapsing.

Characteristics of Black Holes

The gravitational force near a Black Hole is so strong, that the matter is concentrated in a single point of the middle. At the event horizon (also known as the surface of a black hole), the pull of gravity becomes extremely strong. While at the surface, an object can only last for an instant, before it plunges inward at the speed of light. If someone were to fall into a black hole, they would be ripped apart by gravity.
NASA | Massive Black Hole Shreds Passing Star
Click Here learn more about Black Holes!

This website tells you about 10 Amazing facts about Black Holes!

Sources

"Black Holes." The World Book Encyclopedia. B ed. 2014. Print.


Black Hole Wallpaper. Digital image. Hobicall. N.p., 2014. Web. 13 Dec. 2015.


Curtis, David. "How Can We See Black Holes?" NCSA. The Board of Trustees of the University of Illinois, 29 Aug. 1995. Web. 11 Dec. 2015.


Dickerson, Kelly. Supermassive black hole's x-ray burst. Digital image.Astronomers Just Saw a Monster Black Hole Do Something Shocking. Business Insider Inc., 30 Oct. 2015. Web. 11 Dec. 2015.


Jackson, Ellen. The Mysterious Universe: Supernovae, Dark Energy, and Black Holes. Boston: Houghton Mifflin, 2008. Print.


Massive Black Hole Shreds Passing Star. NASA Goddard, 2015. Youtube Video.


Merali, Zeeya. Astrophysics: Fire in the Hole! Digital image. Nature. Nature Publishing Group, 5 Apr. 2013. Web. 7 Dec. 2015.


NASA's Chandra Finds Fastest Wind from Stellar-mass Black Hole. Digital image. NASA. N.p., 25 Nov. 2015. Web. 14 Dec. 2015.


Smith, Heather R. "What Is a Black Hole?" NASA. N.p., n.d. Web. 30 July 2015.