Luka Klikovac When the dust unsettles A shroud of grainy particles veils the heart of most galaxies‚ helping to make stars‚ planets and even us. But where did it all come from? Stuart Clark investigates T HE universe‚ it seems‚ has the same problem I have. Dust‚ everywhere. Looking round as I type this‚ I find myself wondering where on earth it all comes from. Just how does it accumulate without invitation on every surface‚ in every nook and cranny? Increasingly‚ astronomers can
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be within our own galaxy. This illustrated that the Milky Way is just a small object within the universe. Later‚ by examining the light of distant galaxies‚ he showed that the universe is expanding‚ and that everything in it is moving away from everything else. In the early mid-1920s‚ Hubble began conducting new research with Milton Humason‚ on the galaxies’ spectral shifts and unique distances. He and Humason published their research in 1929‚ theorizing that red shifts in galaxies’ light emissions
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Dark Matter: A Basic Understanding Introduction Many people‚ from the inquisitive‚ to those involved in the astronomical sciences have questioned the existence of Dark Matter. While it is called many things today‚ I will continue to refer to this unseen substance by its original name‚ Dark Matter. As it is still a theory being researched today to validate its existence and make-up‚ the discovery of dark matter was first presented to the world some time ago by two very intelligent astronomers
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2) What is the Milky Way galaxy and the sun’s position in it? 3) What is the Big Bang and what does it say about the age of the universe? 4) What is meant by the phase “looking out in the universe is looking back in time? b. Where are we in the universe? 1) What is Earth’s place in the solar system? 2) How close are the nearest stars to the Sun as compared to the distance between the Sun and the Earth? 3) How large is our Milky Way galaxy? 4) How many stars are estimated
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Within the microsystem‚ the school‚ child care center‚ church group‚ family‚ and health services can help by providing nutrient rich food items to be consumed every day. The components of the microsystem can also provide professionals to help his anxiety‚ which may be causing his fatigue. His peers can help with his social and emotional difficulties by befriending
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Measures of Astronomical Distances • Let’s view the Universe in terms of kilometres – The size of the observable universe is roughly 130‚000‚000‚000‚000‚000‚000‚000 km ! - Obviously measuring astronomical distances in km is inconvenient. - We need much BIGGER units of distance: • Some commonly used distance units: 1 ly (light year) = Distance traveled by light in 1 year = 9.46 trillion km 1 AU (astronomical unit) = average distance between the Sun & Earth = 150 million km A unit of distance‚
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expansion. The galaxies outside of the Milky Way galaxy are moving away from us‚ and consequently the ones farthest away are moving the fastest. “However‚ the galaxies are not moving through space‚ they are moving in space‚ because space is also moving. In other words‚ the universe has no center; everything is moving away from everything else” (The Library Of Congress‚ 2010). The Doppler effect is evidence that the universe is expanding. “In 1912‚ Slipher found that the light from all galaxies are moving
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barn into Ruben’s Wingland. Everyone agreed and they colored all the paper wings and decorated the barn to Ruben’s Wing land. The next day people from across the galaxies‚ and all animals just like in Ruben’s dream came to Earth 2000 to take pictures with him and his friends and Antonio. They elected him the President of the whole galaxy. He was very happy but did not want to leave the barn. Everyone agreed and he lived happily on Ruben’s WINGLAND with his
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before the big bang‚ or did the big bang create time and space. As the universe expanded‚ according to scientific understanding‚ matter collected into clouds that began to condense and rotate‚ forming the forerunners of galaxies. Within galaxies‚ including our own Milky Way galaxy‚ changes in pressure caused gas and dust to form distinct clouds. In some of these clouds‚ where there was sufficient mass and the right forces‚ gravitational attraction caused the cloud to collapse. If the mass of material
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Unique Chemical Composition Surrounding Supermassive Black Holes The spiral galaxy NGC 107 was observer with ALMA‚ an astronomical interferometer of radio telescopes in the Atacama desert of northern Chile‚ an this revealed an intense emissions from dust around the central black hole in the center of NGC 107. This "Dust" was revealed to be a unique chemical composition characterized by enhancement of hydrogen cyanide (HCN) around the black hole which is possible thanks to the high temperature
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