are red shifted (light of longer wavelength) while stars movingtowards us are blue shifted (shorter wavelength) 4.- 5.Use a model to describe the expanding universe. Hubble’s law states the further away stars and galaxies were‚ the faster they were going.Thefact that most galaxies are moving away suggests that the universe is expanding. 6.Explain the big bang theory. 14 billion years ago‚ the universe exploded from a singularity containing a lot of concentratedenergy. The energy converted into
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standard model seems consistent with what we can observe and experiment but it still doesn’t cover every phenomena. Indeed‚ the theories concerning gravitation (Newton’s laws and General relativity) return great results when explaining rotation of galaxies‚ gravitational pull‚ etc. however these theories rely upon classical quantum field theory physics and completely break down as we approach the subatomic scale. The standard model mainly relies on the quantum branch of physics which deals with subatomic
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vacuum‚ c = n x (2). From on its discovery the Redshift phenomenon was referred to the “Dopplereffect of wave dynamics”‚ occurs when the source and the receiver are moving relative to each other. Hence this theory proved that all the distant stars ‚ galaxies are moving away from the Earth i.e the universe is expanding. The apparent radial recession velocity away from Earth can be calculated following the Doppler equation: n/no= (1-v/c) (3) n: a specific frequency of the arriving light‚ no: corresponding
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Astronomy Study Guide 1. Know and be able to list the differences between terrestrial and jovian planets. a. Terrestrial Planets i. Mercury ii. Venus iii. Earth iv. Mars b. Characteristics of Terrestrial Planets v. Small vi. Rocky vii. Very close to the Sun viii. Have few moons ix. Have no rings c. Jovian Planets x. Jupiter xi. Saturn xii. Uranus
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5 What is crowdsourcing? How does the site Galaxy Zoo manage crowdsourcing? Crowdsourcing is the process of obtaining needed services‚ ideas‚ or content by soliciting contributions from a large group of people‚ and especially from an online community‚ rather than from traditional employees or suppliers. While this definition from Merriam Webster is valid‚ a more specific definition is heavily debated. The process of crowdsourcing is often used to subdivide tedious work and has occurred successfully
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It was simply a cloud a gas. Hawking discusses how he is astonished at the fact everything‚ such as galaxies and other cosmic matter‚ came from this cloud of gas. And it all had to be built atom-by-atom. The amount of atoms involved in this process is unthinkable. Hawking believes that the all this happened because of gravity. After the Big Bang‚ the gas
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into believing who actually created life and how it happened. In this episode of Standing Up In The Milky Way‚ it thought me a lot of how science may have created life. For Example‚ Neil introduced the Cosmic address (Earth‚ Solar System‚ Milky Way Galaxy‚ Local Group‚ Virgo Super cluster‚ Observable Universe) which dates back to the Big Bang. “Human eyes see only a sliver of the light that shines on the cosmos‚ but science gives us the power to see what our senses cannot.” Neil uses this quote often
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caused this point to become the universe we know today? The “big bang” theory is the popular explanation for where the galaxies‚ stars and planets came from. At the moment of the big bang‚ the hot‚ compact point began expanding like a balloon‚ rather than an actual explosion like most people believe. As the point of matter expanded‚ it cooled‚ contracted and formed stars and galaxies‚ like our solar system and the Milky Way. This suggests that big bang explains the expansion of space itself‚ which in
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Who would have thought a farm girl from Arkansas would now be the senior astrophysicist at the NASA Goddard Space Flight Center. Dr. Jennifer Wiseman first found her love of astronomy in the night skies of Arkansas‚ which led her to study at MIT and receive her Ph.D. from Harvard. Currently‚ she is working at NASA‚ and was appointed as the director of the American Association for the Advancement of Science’s Dialogue on Science‚ Ethics‚ and Religion. During her lecture‚ Wiseman covered three main
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Physics & Theory • SETI o The Allen Telescope Array - The Allen Telescope Array (ATA) is a LNSD‚ also known as a “Large number of small dishes” array and is a new piece of technology to radio astronomy. What is different about it is that it is not one big dish‚ but a series of smaller dishes combined to make one larger one. - The ATA is highly effective and much cheaper for SETI to conduct more than one survey at once in the search of extra-terrestrials. - The ATA detects radio waves that can be
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