Black Holes

Below is one of our free research papers on Black Holes. If the term paper below is not exactly what you're looking for, you can search our essay database for other topics.

Black Holes

Table of Contents
I. What are black holes?
II. Where do they come from?
III. Interesting facts about black holes.
IV. How are they discovered?
A. X-ray Emissions
B. Exotic Energy Sources
C. Star speeds
D. Masers
E. The Baseline Array
F. Hubble Telescope
G. Satellites
V. Quasi-Stellar Relations
VI. Locations
A. M87
B. Milky Way
C. Andromeda
D. ??????
E. NGC 6240
F. A0620-00

    What are black holes? Black holes are the remains of a massive star that has collapsed and shrunk
to a tiny point in space. They have all of the gravity of the star concentrated into that point. Black holes
are difficult to see because they cannot be seen. They cannot be seen because they are spinning faster than
the speed of light and light cannot escape from them. They can be compared to a giant vacuum cleaner,
they suck in anything that gets near them.
    Where do black holes come from? Black holes are formed when giant stars run out of fuel and are
overwhelmed by their own gravity. When this happens they cannot keep from collapsing. After stars
collapse, they start rotating and as they are
spinning, their gravity becomes stronger causing them to shrink. As the object becomes smaller, it starts
spinning faster and faster.
    Using a small black marble as an example of the size that Earth would become if it collapsed and
became a black hole, Todd R. Lauer, of the Nat...

Submitted by: digitalessays
Date Submitted: 03-11-08 3:21am
Category: Social Issues
Words: 4553
Pages: 18.21