LIFE CYCLE OF A STAR Stars are formed in nebulae‚ interstellar clouds of dust and gas (mostly hydrogen). These stellar nurseries are abundant in the arms of spiral galaxies. In these stellar nurseries‚ dense parts of these clouds undergo gravitational collapse and compress to form a rotating gas globule. The globule is cooled by emitting radio waves and infrared radiation. It is compressed by gravitational forces and also by shock waves of pressure from supernova or the hot gas released
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The Life Cycles of Stars In the universe‚ there are hundreds of billions of stars. They are formed when gas and dust from space "clump" together. As the mass grows larger‚ gravity takes over and a core begins to form. The core becomes extremely dense and this compaction causes temperatures within it to rise to the point where nuclear fusion (the burning of hydrogen in a chain reaction) can begin. The heat generated by fusion can reach 24 million degrees F (Fahrenheit). "That amount of heat keeps
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The main theme of "The Star" by Arthur C. Clarke deals with faith. Clarke defines faith as having belief and trust in God with strong conviction. Clarke believes that one must have faith not only during blissful times‚ such as during the time of creation‚ but also during time of anguish‚ such as when destruction occurs. God "created" when a star flew over Bethlehem‚ just as God destroyed a star‚ the Phoenix Nebula‚ and its surrounding planets including any life that may have lived there. God does
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Life cycle of a star Stars are born in nebulae. Huge clouds of dust and gas collapse under gravitational forces‚ forming protostars. These young stars undergo further collapse‚ forming main sequence stars. Stars expand as they grow old. As the core runs out of hydrogen and then helium‚ the core contacts and the outer layers expand‚ cool‚ and become less bright. This is a red giant or a red super giant (depending on the initial mass of the star). It will eventually collapse and explode. Its fate
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Stars are born in high density areas of space called nebulas. A nebula (as defined by Dictionary.com) is: A diffuse mass of interstellar dust or gas or both‚ visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident radiation. The stars are born because of the gravity of the nebula acts on itself‚ condensing the gas and dust into a protostar. A protostar is a very small star. The protostar begins to heat up‚ and if it has enough matter the core
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cycle of a star How does gravity‚ nuclear fusion and mass affect the life cycle of a different sized stars? * Stars initially form from clouds of dust and gas. The force of gravity makes the gas and dust spiral in together to form a protostar. Gravitational energy has converted into heat energy‚ so the temperature rises * When the temperature gets high enough‚ hydrogen nucli undergo thermonuclear fusion to form helium nuclei and give out massive amounts of heat and light. A star is born. It
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It is the first film released in the Star Wars saga and is the fourth in terms of the series’ internal chronology. Groundbreaking in its use of special effects and science fiction/fantasy storytelling‚ the original Star Wars is one of the most successful and influential films of all time. Set "a long time ago in a galaxy far‚ far away"‚ the film follows a group of freedom fighters known as the Rebel Alliance as they plot to destroy the powerful Death Star space station‚ a devastating weapon created
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Protostar This is the stage in which the star begins to form after the collapse of the interstellar cloud. It happens in small molecular clouds that can be referred to as dense cores. In the beginning the dense core has a level of balance between its own gravitational forces (self-gravity)‚ and both the magnetic pressure‚ and gas pressure. The self-gravity acts to compress the dense core‚ while the gas‚ and magnetic pressures act to inflate it. The core’s self-gravity will eventually overwhelm it
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Star Wars Episode III Revenge Of The Sith A New Hope for film scoring… In 1977 George Lucas’ vision of a universe where war‚ mysticism‚ despair‚ and hope was made a reality by 20th Century Fox studios. Instrumental to the shaping of a complete universe was the musical language created by John Williams. Williams’ orchestration‚ thematic motifs and understanding of the emotional context of the story propelled the film to legendary status‚ and now‚ in 2005 we reach the climax of the six feature
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Does One “Star” Out Shine the Other? Star Wars and Star Trek are both highly recognized as the two science fiction teams that battle it out‚ on and off screen with the fans determining which one is best. Constant debates about which one is better or worse then the other. How they have very similar stories‚ or that they are polar opposites. The two franchises have many similarities‚ including the word ‘Star’ in their respective titles‚ while they have similarities Star Trek and Star Wars are vastly
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