Astronomy Essay

690 Words2 Pages

Space: The Final Frontier
Astronomy is a word derived from Greek; it comes from the merging of two words, the first being ‘star’ and the second being ‘law.’ Like the name suggests, astronomy is the study of stars, in addition to countless other aspects of space and the universe in general. Being such a broad subject, there are of course many different branches of astronomy. These include general astrophysics, theoretical astrophysics, astrobiology, physical cosmology, galactic astronomy… you get the idea. (wiki) There are a lot. But the overarching theme of them all is space, especially the physics of space. And wherever there is physics, there is math.
Like math, astronomy incorporates a healthy (or-not-so-healthy, depending on your perspective) usage of symbols. These symbols are often times greek letters, like in many other forms of equations. These symbols are commonly used in formulas. There is practically an astrological formula for everything; formulas to calculate brightness, distance, luminosity, and a myriad of others. (http://www.uncg.edu/cla/courses/shelmerd/grkalpha.gif)
The formula in fig. 1 is used to calculate kinetic energy (The energy an object has due to its motion) of an object. This is formula is applicable in many ways. For example, it can be altered to find the energy of unbelievably small units, such as molecules and atoms. This altered formula can be seen in fig. 2. Every object moving in space has kinetic energy (http://m.teachastronomy.com/astropedia/article/Potential-and-Kinetic-Energy). Kinetic energy is all around us, for example if you’re driving on the street and pass two cars of the same make and model, the car going faster will have more kinetic energy than the slower. Kinetic energy is seen al...

... middle of paper ...

...based on their mass and size. They are listed as Supermassive, Stellar, and Miniature. Supermassive—the type of star that lies in the center of a galaxy—are the largest black holes among these. Astronomers believe supermassive black holes grow when object pass the event horizon (an imaginary sphere around the black hole where the escape velocity is greater than the speed of light). Stellar black holes are remnants of large stars, as was explained earlier. These are the most commonly formed type of black hole. Finally, there are Miniature black holes, like the one mentioned in the oreo analogy. One possible origin of these Miniatures would be in the dawn of our universe, during the Big Bang. Matter would have been compressed into a single point and then then expanded rapidly. Some parts may have expanded more rapidly than others, thus creating a Miniature black hole.

More about Astronomy Essay

Open Document