Scale of the Cosmos ppt.
... The Universe- the largest SYSTEM What is the Universe? How large is the universe? How many galaxies are in the universe? ...
... The Universe- the largest SYSTEM What is the Universe? How large is the universe? How many galaxies are in the universe? ...
Study Notes for Integrated Science Astronomy Unit These notes will
... In this part of the unit we learned about how we scientifically explain how our universe has come to be. We discussed from the beginning at singularity to the point at which the first stars began to form. The Big Bang Theory came about by scientists and observers realizing that our universe is expan ...
... In this part of the unit we learned about how we scientifically explain how our universe has come to be. We discussed from the beginning at singularity to the point at which the first stars began to form. The Big Bang Theory came about by scientists and observers realizing that our universe is expan ...
Hypothesis vs. Theory ~The Big Bang
... Our study of Astronomy requires us to look UP and not DOWN. Humans today are not used to looking UP, we are not used to observing the sky – it appears to be of little use – and city living with its extensive light pollution often prevents us from seeing, and hence exploring, the “heavens”. Most of u ...
... Our study of Astronomy requires us to look UP and not DOWN. Humans today are not used to looking UP, we are not used to observing the sky – it appears to be of little use – and city living with its extensive light pollution often prevents us from seeing, and hence exploring, the “heavens”. Most of u ...
Lecture 1 Coordinate Systems - Department of Physics & Astronomy
... The Universe at a Glance A Modern View of the Universe Some simple observations of the universe… What’s out there? How does one study Astrophysical objects? Some examples of what we understand ...
... The Universe at a Glance A Modern View of the Universe Some simple observations of the universe… What’s out there? How does one study Astrophysical objects? Some examples of what we understand ...
Ch. 26.5: The Expanding Universe
... Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the amount of matter that we can see. This tells us that there must be more mass … we’re just not seeing i ...
... Why do we think Dark Matter exists? Galaxies are accelerating faster than they should be (based on the observable matter in the Universe). The acceleration due to gravity does not match up with the amount of matter that we can see. This tells us that there must be more mass … we’re just not seeing i ...
Problem Set # 7: The Penultimate Problem Set Due Wednesday
... at class time If you want to turn in your problem set early, you can hand it in at Professor Ryden’s office, 4035 McPherson. ...
... at class time If you want to turn in your problem set early, you can hand it in at Professor Ryden’s office, 4035 McPherson. ...
Big Bang Quiz
... a) The temperature of space in the universe is 0 Kelvin. b) A tiny amount of heat left over from the Big Bang is spread around the universe. c) Galaxies and the space between them are the same temperature. d) There is no evidence for the Big Bang beyond the expanding universe. ...
... a) The temperature of space in the universe is 0 Kelvin. b) A tiny amount of heat left over from the Big Bang is spread around the universe. c) Galaxies and the space between them are the same temperature. d) There is no evidence for the Big Bang beyond the expanding universe. ...
Big Bang Theory
... - galaxies are moving apart, but they themselves do not expand because of gravity ...
... - galaxies are moving apart, but they themselves do not expand because of gravity ...
10.1 PPT
... Hubble proposed that the universe is expanding. The galaxies which are further away from Earth are moving apart faster than those closer to Earth. He used the analogy comparing an uncooked loaf of raisin bread to one that is put into the oven. As the dough rises the raisins (galaxies) are moving fur ...
... Hubble proposed that the universe is expanding. The galaxies which are further away from Earth are moving apart faster than those closer to Earth. He used the analogy comparing an uncooked loaf of raisin bread to one that is put into the oven. As the dough rises the raisins (galaxies) are moving fur ...
Astronomy - Seton Hall University Pirate Server
... Exams: There will be two hourly tests and a final exam. HW: There will be weekly HW assignments from the book or the Astronomy Media Book. HW assignments will be graded and is a 20% of the final grade. Attendance/participation: Attendance will be taken each lecture. Student participation ...
... Exams: There will be two hourly tests and a final exam. HW: There will be weekly HW assignments from the book or the Astronomy Media Book. HW assignments will be graded and is a 20% of the final grade. Attendance/participation: Attendance will be taken each lecture. Student participation ...
Big Bang Balloon
... An activity you can use in the classroom In the 1920s astronomer Edwin Hubble used the red shift of the spectra of stars to determine that the universe was expanding. By carefully observing the light from galaxies at different distances from Earth, he determined that the farther something was from E ...
... An activity you can use in the classroom In the 1920s astronomer Edwin Hubble used the red shift of the spectra of stars to determine that the universe was expanding. By carefully observing the light from galaxies at different distances from Earth, he determined that the farther something was from E ...
Astronomy and Our Origins
... • Scientists believe the entire universe began as a single, one dimensional speck that exploded into existence. • This idea is called the Big Bang Theory! • Do we know for sure…of course not…we could be right or wrong. We will never know. • But we do have a lot of evidence to support our hypothesis. ...
... • Scientists believe the entire universe began as a single, one dimensional speck that exploded into existence. • This idea is called the Big Bang Theory! • Do we know for sure…of course not…we could be right or wrong. We will never know. • But we do have a lot of evidence to support our hypothesis. ...
Our Place in the Cosmos
... Gravity is caused by the curvature of spacetime; the curvature is induced by the presence of matter “Matter tells space how to curve, space tells matter how to move” (John Wheeler) Light rays are bent when they pass near a large mass, a prediction confirmed by Arthur Eddington in 1919 ...
... Gravity is caused by the curvature of spacetime; the curvature is induced by the presence of matter “Matter tells space how to curve, space tells matter how to move” (John Wheeler) Light rays are bent when they pass near a large mass, a prediction confirmed by Arthur Eddington in 1919 ...
Origin of Elements - Madison Public Schools
... Our galaxy, the Milky Way, contains ~200 billion stars. Outside the Milky Way are billions more galaxies. There is evidence that the universe is expanding, so galaxies are moving farther away from each other. Thermal energy remains constant, so the universe is also cooling down. There is a large bod ...
... Our galaxy, the Milky Way, contains ~200 billion stars. Outside the Milky Way are billions more galaxies. There is evidence that the universe is expanding, so galaxies are moving farther away from each other. Thermal energy remains constant, so the universe is also cooling down. There is a large bod ...
Life2
... original matter from Big Bang into clumps called protostars. Hysdrostatic equilibrium is established where outward radiation pressure balances gravity. A Star is born! Early stars had very little metallicity (i.e. no heavy elements). Stellar evolution - (main sequence) – Life cycle of a star depends ...
... original matter from Big Bang into clumps called protostars. Hysdrostatic equilibrium is established where outward radiation pressure balances gravity. A Star is born! Early stars had very little metallicity (i.e. no heavy elements). Stellar evolution - (main sequence) – Life cycle of a star depends ...
The Merger of Two Disk Galaxies
... the material becomes part of the young Sun, but some debris forms a disk. Within this disk form the planets, moons, comets, asteroids, and meteoroids. Note that this process is repeated on a smaller scale in the ...
... the material becomes part of the young Sun, but some debris forms a disk. Within this disk form the planets, moons, comets, asteroids, and meteoroids. Note that this process is repeated on a smaller scale in the ...
Big Bang - WordPress.com
... This was the start of experiments to re-create conditions a few moments after the Big Bang. Observational evidence shows the Universe started at one point in space and time. The Big Bang theory states everything started from a tiny point that expanded rapidly in an explosion. Matter was thrown out i ...
... This was the start of experiments to re-create conditions a few moments after the Big Bang. Observational evidence shows the Universe started at one point in space and time. The Big Bang theory states everything started from a tiny point that expanded rapidly in an explosion. Matter was thrown out i ...
Explaining the early universe
... One pioneer in space exploration was an American astronomer named Edwin Hubble. He was the first astronomer to identify other galaxies besides the Milky Way. Then he made an astonishing discovery. He noticed that all the galaxies he was observing were not staying still. Rather, they were moving awa ...
... One pioneer in space exploration was an American astronomer named Edwin Hubble. He was the first astronomer to identify other galaxies besides the Milky Way. Then he made an astonishing discovery. He noticed that all the galaxies he was observing were not staying still. Rather, they were moving awa ...
123mt13-2a
... Forms a scattering surface for photons Means the Universe has a net negative charge ...
... Forms a scattering surface for photons Means the Universe has a net negative charge ...
Cool Cosmology ppt pics
... – Particle accelerators are used to study quarks and what happened in the Big Bang. – Bombard subatomic particles w/ other subatomic particles and look @ what gets ejected as they collide ...
... – Particle accelerators are used to study quarks and what happened in the Big Bang. – Bombard subatomic particles w/ other subatomic particles and look @ what gets ejected as they collide ...
Flatness problem
The flatness problem (also known as the oldness problem) is a cosmological fine-tuning problem within the Big Bang model of the universe. Such problems arise from the observation that some of the initial conditions of the universe appear to be fine-tuned to very 'special' values, and that a small deviation from these values would have had massive effects on the nature of the universe at the current time.In the case of the flatness problem, the parameter which appears fine-tuned is the density of matter and energy in the universe. This value affects the curvature of space-time, with a very specific critical value being required for a flat universe. The current density of the universe is observed to be very close to this critical value. Since the total density departs rapidly from the critical value over cosmic time, the early universe must have had a density even closer to the critical density, departing from it by one part in 1062 or less. This leads cosmologists to question how the initial density came to be so closely fine-tuned to this 'special' value.The problem was first mentioned by Robert Dicke in 1969. The most commonly accepted solution among cosmologists is cosmic inflation, the idea that the universe went through a brief period of extremely rapid expansion in the first fraction of a second after the Big Bang; along with the monopole problem and the horizon problem, the flatness problem is one of the three primary motivations for inflationary theory.