Ghost for Halloween

    First of all I know that many of you are thinking I'm going to speak about actual ghost of humans but in fact I will be speaking about the ghost of stars that have passed. This is an article that I discovered while I was searching the web and I found it extremely interesting and I wanted to share it with whoever maybe interested in a little Halloween spirit. There has been three different stellar ghost that have been discovered by NASA. NASA used infrared light from Spitzer a space telescope (NASA, 2013). I believe this is in fact extremely interesting because when one thinks of a ghost they think of a human ghost but no one really thinks that a star can have a ghost as well. A star dies when it runs out of fuel. For example a star such as our very own sun will eventually run out of fuel in about a billion years. As a star dies it turns in to a "Red Giant" this happens when the core of the star swells due to it dying (NASA, 2013). After a while of "dying" the star will eventually releases its outer layers and they move away from the star itself (NASA, 2013). The core of the star will soon let out ultraviolet which will allow the material that was let off by the star to glow in various shapes "Ghosts" (NASA, 2013). The shapes of dying stars may vary. The outer layer of the stars will stay in space for about a thousand years and then will eventually disperse which is why they call them ghost because that star the  material came from is dead (NASA, 2013). I personally believe this is an amazing discover based on the fact that many people would have never thought a star could have a ghost. There are 3 known ghost of stars that have been named Exposed Cranium Nebula, Ghost of Jupiter Nebula, and Little Dumbbell Nebula (NASA, 2013). Halloween is my favorite holiday and I felt this article would be relevant and cool for you to read and look at. Happy Halloween!!

http://www.jpl.nasa.gov/news/news.php?release=2013-312
Above is the link to the article I found for this entry.

                                 (Credit: NASA/JPL-Caltech/Harvard-Smithsonian CfA)

Article Citation 

     NASA/Jet Propulsion Laboratory (2013, October 29). A ghostly trio from NASA's Spitzer Space Telescope. ScienceDaily. Retrieved October 29, 2013, from http://www.sciencedaily.com­/releases/2013/10/131029140700.htm