Nebula+-+KL

Rubric: [[file:Space Exploration Adventure Rubric.doc]], [[file:Space Exploration Adventure Rubric.pdf]]
** Written Information **: What is a nebula? ~A cloud of gas and dust in outer space, which is visible in the night sky either as a distant bright patch or as a dark area against other luminous matter ~A cloud of gas and dust located between stars and/or surrounding stars. Nebulae are often places where stars form. How is a Nebula usually formed? ~ It is the first stage of a star's cycle. Originally nebula was a general name for any extended astronomical object, including galaxies beyond the Milky Way .Nebulae often form star-forming regions, such as in the Eagle Nebula. In these regions the formations of gas, dust and other materials 'clump' together to form larger masses, which attract further matter, and eventually will become big enough to form stars. The remaining materials are then believed to form planets, and other planetary system objects. Many nebulae form from the gravitational collapse of diffuse ( spread ) gas in the interstellar medium ( Material, mostly hydrogen gas,other gases,and dust,filling the space between stars and creating a raw material for the formation of new stars .). As the material collapses under its own weight, massive stars may form in the center, and their ultraviolet radiation ionizes ( to create into an ion, an electrically charged particle ) the surrounding gas, making it visible at optical wavelengths. An example of this type of nebula is the Rosette Nebula or the Pelican Nebula. The size of these nebulae, varies depending on the size of the original cloud of gas, and the number of stars formed can vary too. As the sites of star formation, the formed stars are sometimes known as a young, loose cluster. Some nebulae are formed as a result of supernova explosions, the death throes ( suffers from )of massive, short-lived stars. The material thrown off from the supernova explosion is ionized by the supernova remnant. One of the best examples of this is the Crab Nebula, in Taurus. Other nebulae may form as planetary nebulae. This is the final stage of a low-mass star's life, like Earth's Sun. Stars with a mass up to 8-10 solar masses evolve into red giants and slowly lose their outer layers during explosions in their atmospheres. When a star has lost a sufficient amount of material, its temperature increases and the ultraviolet radiation it emits (to give off ) is capable of ionizing the surrounding nebula that it has thrown off.

** Visuals **


 * [[image:http://www.nasa.gov/images/content/169139main_piaa09178-516.jpg width="244" height="238" align="bottom" caption="infrared view of Helix nebula"]] || [[image:http://www.nasa.gov/images/content/616452main_HERSCHEL_01172012_1600_946-710.jpg width="323" height="258" align="bottom" caption="The Eagle Nebula"]] ||
 * [[image:http://www.nasa.gov/images/content/482248main_image_1760_946-710.jpg width="296" height="248" align="bottom" caption="The Rosette Nebula"]] || [[image:http://www.nasa.gov/images/content/148386main_image_feature_567_ys_4.jpg width="245" height="230" align="bottom" caption="Crab Nebula"]] ||
 * [[image:http://www.nasa.gov/images/content/45506main_MM_Image_Feature_73_rs4.jpg width="265" height="214" align="bottom" caption="The Horsehead Nebula"]] || [[image:http://www.nasa.gov/images/content/199948main_rs_image_feature_787_946x710.jpg width="388" height="328" align="bottom" caption="The Egg Nebula"]] ||
 * [[image:http://www.nasa.gov/images/content/48356main_MM_Image_Feature_79_rs4.jpg width="251" height="195" align="bottom" caption="Dumbbell Nebula Halo"]] || [[image:http://www.nasa.gov/images/content/200750main_rs_image_feature_864_946x710.jpg width="946" height="710" align="bottom" caption="This Hubble Space Telescope image reveals an expanding shell of glowing gas surrounding a hot, massive star in our Milky Way Galaxy"]] ||
 * [[image:http://upload.wikimedia.org/wikipedia/commons/thumb/b/b2/Eagle_nebula_pillars.jpg/607px-Eagle_nebula_pillars.jpg width="273" height="268" caption="File:Eagle nebula pillars.jpg" link="http://upload.wikimedia.org/wikipedia/commons/b/b2/Eagle_nebula_pillars.jpg"]] ||  ||

**Works Cited** **Sources:** "Milky Way." //Kids InfoBits Presents: Astronomy//. Gale, 2008. Reproduced in Kids InfoBits. Detroit: Gale, 2012. "The Milky Way." //WMAP's Universe//. NASA, 28 June 2010. Web. 06 Mar. 2012. . Vergano, Dan. "Galaxy Bracketed by Big Bubbles." //USA Today// 10 Nov. 2010: 05A. Web. 6 Mar. 2012.

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**Topic: Research Focus** **What is your topic? Nebula **
 * State the focus of your research: To find information on how nebulae are formed and what they are. **

**Notes** What is a nebula? ~A cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter ~A cloud of gas and dust located between stars and/or surrounding stars. Nebulae are often places where stars form. How is a Nebula usually formed? ~ It is the first stage of a star's cycle. Originally nebula was a general name for any extended astronomical object, including galaxies beyond the Milky Way .Nebulae often form star-forming regions, such as in the Eagle Nebula. In these regions the formations of gas, dust and other materials 'clump' together to form larger masses, which attract further matter, and eventually will become big enough to form stars. The remaining materials are then believed to form planets, and other planetary system objects. Many nebulae form from the gravitational collapse of diffuse gas in the interstellar medium. As the material collapses under its own weight, massive stars may form in the center, and their ultraviolet radiation ionizes the surrounding gas, making it visible at optical wavelengths. An example of this type of nebula is the Rosette Nebula or the Pelican Nebula. The size of these nebulae, varies depending on the size of the original cloud of gas, and the number of stars formed can vary too. As the sites of star formation, the formed stars are sometimes known as a young, loose cluster. Diffuse-Spread interstellar medium- Material, mostly hydrogen gas, othergases, and dust, occupying the space between the stars and providing the raw material for the formation of new stars. Ionize- to create into an ion (an electrically charged particle) Some nebulae are formed as the result of supernova explosions, the death throes of massive, short-lived stars. The material thrown off from the supernova explosion is ionized by the supernova remnant. One of the best examples of this is the Crab Nebula, in Taurus. Throes -suffering from Other nebulae may form as planetary nebulae. This is the final stage of a low-mass star's life, like Earth's Sun. Stars with a mass up to 8-10 solar masses evolve into red giants and slowly lose their outer layers during explosions in their atmospheres. When a star has lost a sufficient amount of material, its temperature increases and the ultraviolet radiation it emits is capable of ionizing the surrounding nebula that it has thrown off. Emits- to give off