Stellar Evolution
... The Big Bang • Tremendous explosion started the expansion of the universe • All of the matter and energy of the universe was contained at one point ...
... The Big Bang • Tremendous explosion started the expansion of the universe • All of the matter and energy of the universe was contained at one point ...
review
... Another measure of the density of matter and energy in the universe comes from measuring the curvature of space. Flat universe has critical density, W0=1 . Closed or positive curvature universe has higher than critical density and Open or negative curvature universe has lower than critical density. ...
... Another measure of the density of matter and energy in the universe comes from measuring the curvature of space. Flat universe has critical density, W0=1 . Closed or positive curvature universe has higher than critical density and Open or negative curvature universe has lower than critical density. ...
Time From the Perspective of a Particle Physicist
... stars are formed in groups with some massive and some small. The size of the largest stars in the cluster tells us how old all the stars in that cluster are. The oldest clusters are formed from the primordial material of the Universe (before stars existed) and their atomic composition is a fossil re ...
... stars are formed in groups with some massive and some small. The size of the largest stars in the cluster tells us how old all the stars in that cluster are. The oldest clusters are formed from the primordial material of the Universe (before stars existed) and their atomic composition is a fossil re ...
History Test Review Answers - School District of La Crosse
... 11.The__EGYPTIAN____________culture based their planting of the crops on the rising of the star Sirius, because the Nile would flood about this time. 12. ___HELIOCENTRIC__________model suggest the earth is the center of the solar system 13. The problem with ptolemy's model is he used imaginary ___C ...
... 11.The__EGYPTIAN____________culture based their planting of the crops on the rising of the star Sirius, because the Nile would flood about this time. 12. ___HELIOCENTRIC__________model suggest the earth is the center of the solar system 13. The problem with ptolemy's model is he used imaginary ___C ...
Hypothesis vs. Theory ~The Big Bang
... 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 us have some awareness that we are part of a system of ...
... 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 us have some awareness that we are part of a system of ...
SYLLABUS Spring 2012 SCIE 3304, SECTION 001 ASTRONOMY
... of the planets, asteroids, meteoroids, comets, and the discovery of extrasolar planets, study of the Sun as a star, measurement of different properties of stars, birth, evolution and death of stars, strange states of matter (neutron stars and black holes), Milky Way Galaxy, study of the Universe bey ...
... of the planets, asteroids, meteoroids, comets, and the discovery of extrasolar planets, study of the Sun as a star, measurement of different properties of stars, birth, evolution and death of stars, strange states of matter (neutron stars and black holes), Milky Way Galaxy, study of the Universe bey ...
STATE UNIVERSITY OF NEW YORK COLLEGE OF TECHNOLOGY CANTON, NEW YORK
... a. Appreciate the scale of the universe and basic structure in relationship to the Big Bang theory. b. Give an historical perspective on the development of modern astronomy in conjunction with the development of Newtonian Mechanics and an understanding of gravity, as illustrated by the shift from a ...
... a. Appreciate the scale of the universe and basic structure in relationship to the Big Bang theory. b. Give an historical perspective on the development of modern astronomy in conjunction with the development of Newtonian Mechanics and an understanding of gravity, as illustrated by the shift from a ...
2014 Joseph E. Pesce, Ph.D. 1 Astro 113 Final Exam Review 1. What
... 27. Why does the region of the sky called the “Milky Way” have a larger concentration of stars than other regions? 28. What is an effect of a large fraction of dark matter in the Universe? ...
... 27. Why does the region of the sky called the “Milky Way” have a larger concentration of stars than other regions? 28. What is an effect of a large fraction of dark matter in the Universe? ...
Our Place In the Universe
... Galaxies may exist at that distance, but their light would be too faint for our telescopes to see. Because looking 15 billion lightyears away means looking to a time before the universe existed. ...
... Galaxies may exist at that distance, but their light would be too faint for our telescopes to see. Because looking 15 billion lightyears away means looking to a time before the universe existed. ...
Chapter 7 Review Answers
... at the beginning of the universe (BBT) went. That extra radiation should be present throughout the universe if the BBT was to be true. We believe now that the cosmic background radiation is that extra energy/radiation. The CBR found fits with the predictions consistent with the BBT, supporting the B ...
... at the beginning of the universe (BBT) went. That extra radiation should be present throughout the universe if the BBT was to be true. We believe now that the cosmic background radiation is that extra energy/radiation. The CBR found fits with the predictions consistent with the BBT, supporting the B ...
PARTS OF THE UNIVERSE
... v Big Bang Theory: states that all matter and energy were once packed into a tiny particle smaller than a speck of dust. v The particle began to expand and matter and energy moved rapidly outward in all directions. v The matter cooled and collected to form stars, galaxies, nebulae, and planets ...
... v Big Bang Theory: states that all matter and energy were once packed into a tiny particle smaller than a speck of dust. v The particle began to expand and matter and energy moved rapidly outward in all directions. v The matter cooled and collected to form stars, galaxies, nebulae, and planets ...
New Directions
... had predicted that if the Big Bang theory was correct, a background radiation at 3degree Kelvin would exist This and better Hubble measurements in 1949 verified ...
... had predicted that if the Big Bang theory was correct, a background radiation at 3degree Kelvin would exist This and better Hubble measurements in 1949 verified ...
Dark Matter Dark Energy The History of the Universe More of the
... of matter over antimatter. The amount of excess was very small, less than 1%. ...
... of matter over antimatter. The amount of excess was very small, less than 1%. ...
100 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $200
... of matter over antimatter. The amount of excess was very small, less than 1%. ...
... of matter over antimatter. The amount of excess was very small, less than 1%. ...
Here
... Energy. • As the universe expanded, it cooled. This allowed the first subatomic particles to form (protons, neutron, electrons). • The simplest elements were the first to form. Hydrogen and helium. The fuel for STARS! ...
... Energy. • As the universe expanded, it cooled. This allowed the first subatomic particles to form (protons, neutron, electrons). • The simplest elements were the first to form. Hydrogen and helium. The fuel for STARS! ...
Chapter 12
... 4. The Oscillating theory states that the universe is closed and that there is enough matter in the universe to slow (because of gravity) and eventually stop the expansion of the universe. According to this theory, all matter will meet again in a Big Crunch. 5. Cosmic background radiation is the rad ...
... 4. The Oscillating theory states that the universe is closed and that there is enough matter in the universe to slow (because of gravity) and eventually stop the expansion of the universe. According to this theory, all matter will meet again in a Big Crunch. 5. Cosmic background radiation is the rad ...
Before people could understand the history of the universe, they had
... - interested in the Grand Unification Theory of Forces - calculations led to the idea of "cosmic inflation” (brief period of rapid expansion in the early Universe) • It explains why the Universe is so big and so smooth, why (at least) four different forces act in it today, and where the vast amounts ...
... - interested in the Grand Unification Theory of Forces - calculations led to the idea of "cosmic inflation” (brief period of rapid expansion in the early Universe) • It explains why the Universe is so big and so smooth, why (at least) four different forces act in it today, and where the vast amounts ...
Concept map-Rubric-final - Berkeley Center for Cosmological
... work backwards from observations of the visible universe to ...
... work backwards from observations of the visible universe to ...
Scale of the Cosmos ppt.
... Times 86,400 seconds in a day Times 365 days in a year 10 trillion kilometers! 10,000,000,000,000 km 1013 km Or about 6 trillion miles!!! ...
... Times 86,400 seconds in a day Times 365 days in a year 10 trillion kilometers! 10,000,000,000,000 km 1013 km Or about 6 trillion miles!!! ...
Astronomy and Cosmology Exam Review
... 13) What are the two competing theories that describe the fate of the universe? Big Freeze and the Big Crunch 14) Which one does the scientific community generally regard as most likely, given what we currently know? Big Freeze (dark energy > dark matter) 15) What was the first of the four fundamen ...
... 13) What are the two competing theories that describe the fate of the universe? Big Freeze and the Big Crunch 14) Which one does the scientific community generally regard as most likely, given what we currently know? Big Freeze (dark energy > dark matter) 15) What was the first of the four fundamen ...
Ch. 26.5: The Expanding Universe
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter 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 du ...
... Dark Matter = Does not give off radiation & cannot be detected Exerts gravitational force on visible matter Universe may be 90% + dark matter 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 du ...
PowerPoint Presentation - The Origin of the Universe
... The SNe must have gotten farther than expected for some epoch of the universe The universe appears to have been accelerating between the epoch equivalent to z ~ 0.5 and now ! i.e. expanding faster and faster ! ...
... The SNe must have gotten farther than expected for some epoch of the universe The universe appears to have been accelerating between the epoch equivalent to z ~ 0.5 and now ! i.e. expanding faster and faster ! ...
Ch. 28 Test Topics
... -Be able to describe the Big Bang theory says the universe began as a huge explosion between 10 billion and 20 billion years ago. -Know that all matter and energy started in a space smaller than the nucleus of an atom and that this space is called a singularity. ...
... -Be able to describe the Big Bang theory says the universe began as a huge explosion between 10 billion and 20 billion years ago. -Know that all matter and energy started in a space smaller than the nucleus of an atom and that this space is called a singularity. ...
Bang To Sol - Transcript
... But as the universe expanded, it cooled, and gradually, the basic pieces of normal matter were formed from that incredible energy. Quarks were the first particles to form. Today, quarks only exist in tightly bound groups, but back then, space was so small and quarks were squeezed so close together t ...
... But as the universe expanded, it cooled, and gradually, the basic pieces of normal matter were formed from that incredible energy. Quarks were the first particles to form. Today, quarks only exist in tightly bound groups, but back then, space was so small and quarks were squeezed so close together t ...
ASTRONOMY WEBQUEST…… EXPLORE THE UNIVERSE
... http://library.thinkquest.org/26220/stars/formation.html What is a nebula (click on protostars)? ...
... http://library.thinkquest.org/26220/stars/formation.html What is a nebula (click on protostars)? ...
Universe
The Universe is all of time and space and its contents. The Universe includes planets, stars, galaxies, the contents of intergalactic space, the smallest subatomic particles, and all matter and energy. The observable universe is about 28 billion parsecs (91 billion light-years) in diameter at the present time. The size of the whole Universe is not known and may be infinite. Observations and the development of physical theories have led to inferences about the composition and evolution of the Universe.Throughout recorded history, cosmologies and cosmogonies, including scientific models, have been proposed to explain observations of the Universe. The earliest quantitative geocentric models were developed by ancient Greek philosophers and Indian philosophers. Over the centuries, more precise astronomical observations led to Nicolaus Copernicus's heliocentric model of the Solar System and Johannes Kepler's improvement on that model with elliptical orbits, which was eventually explained by Isaac Newton's theory of gravity. Further observational improvements led to the realization that the Solar System is located in a galaxy composed of billions of stars, the Milky Way. It was subsequently discovered that our galaxy is just one of many. On the largest scales, it is assumed that the distribution of galaxies is uniform and the same in all directions, meaning that the Universe has neither an edge nor a center. Observations of the distribution of these galaxies and their spectral lines have led to many of the theories of modern physical cosmology. The discovery in the early 20th century that galaxies are systematically redshifted suggested that the Universe is expanding, and the discovery of the cosmic microwave background radiation suggested that the Universe had a beginning. Finally, observations in the late 1990s indicated the rate of the expansion of the Universe is increasing indicating that the majority of energy is most likely in an unknown form called dark energy. The majority of mass in the universe also appears to exist in an unknown form, called dark matter.The Big Bang theory is the prevailing cosmological model describing the development of the Universe. Space and time were created in the Big Bang, and these were imbued with a fixed amount of energy and matter; as space expands, the density of that matter and energy decreases. After the initial expansion, the Universe cooled sufficiently to allow the formation first of subatomic particles and later of simple atoms. Giant clouds of these primordial elements later coalesced through gravity to form stars. Assuming that the prevailing model is correct, the age of the Universe is measured to be 7001137990000000000♠13.799±0.021 billion years.There are many competing hypotheses about the ultimate fate of the Universe. Physicists and philosophers remain unsure about what, if anything, preceded the Big Bang. Many refuse to speculate, doubting that any information from any such prior state could ever be accessible. There are various multiverse hypotheses, in which some physicists have suggested that the Universe might be one among many universes that likewise exist.