The Big Bang Theory:
... D = distance of galaxy to earth • Galaxies are getting farther apart as time progresses, therefore the universe is expanding. – Not only is it expanding… it’s accelerating! ...
... D = distance of galaxy to earth • Galaxies are getting farther apart as time progresses, therefore the universe is expanding. – Not only is it expanding… it’s accelerating! ...
Big Bang Theory Scientific origin of the Universe
... How are distances in the universe measured? • Light-year – the distance that light travels in one year going at the speed of light • Speed of light – 300,000 km/second • Speed of light – 186, 000 miles/second • 9.5 trillion km in one year • Closest star (other that sun) is Proxima Centauri is 4.3 l ...
... How are distances in the universe measured? • Light-year – the distance that light travels in one year going at the speed of light • Speed of light – 300,000 km/second • Speed of light – 186, 000 miles/second • 9.5 trillion km in one year • Closest star (other that sun) is Proxima Centauri is 4.3 l ...
10.1 PPT
... • Early astronomers were able to observe outer space by using the best instruments of the time, early telescopes. • With the development of more powerful telescopes in the 1920’s, suddenly more celestial bodies were discovered. • Celestial bodies is a general term for all the objects in the sky, in ...
... • Early astronomers were able to observe outer space by using the best instruments of the time, early telescopes. • With the development of more powerful telescopes in the 1920’s, suddenly more celestial bodies were discovered. • Celestial bodies is a general term for all the objects in the sky, in ...
Math Primer - UMass Amherst
... 1. The Sun would hold 1.3 million Earths. i.e. the radius of the Sun is about 100 times that of the Earth. 2. There are ~100 billion "Suns" in a galaxy like our own Milky Way Galaxy. 3.Astronomers can see billions of galaxies. ...
... 1. The Sun would hold 1.3 million Earths. i.e. the radius of the Sun is about 100 times that of the Earth. 2. There are ~100 billion "Suns" in a galaxy like our own Milky Way Galaxy. 3.Astronomers can see billions of galaxies. ...
Our Place in the Cosmos
... Smoot “for their discovery of the blackbody form and anisotropy of the cosmic microwave background radiation" ...
... Smoot “for their discovery of the blackbody form and anisotropy of the cosmic microwave background radiation" ...
Earth Science
... 9. Describe the Inflationary Model and draw the graph. 18. As the Earth orbits the Sun, what happens to the orientation of the Earth’s axis? 10. Match the following terms with their definitions. ___ Big Bang theory ___ steady-state theory ___ cosmic background radiation ___ inflationary universe A. ...
... 9. Describe the Inflationary Model and draw the graph. 18. As the Earth orbits the Sun, what happens to the orientation of the Earth’s axis? 10. Match the following terms with their definitions. ___ Big Bang theory ___ steady-state theory ___ cosmic background radiation ___ inflationary universe A. ...
The Components and Origin of the Universe
... energy expanded from a hot dense mass with an incredibly small volume 2. at first, the universe was hot (10 32 C) and energy went rushing out in all directions energy became cooled enough to become matter 3. matter then cooled enough to form protons, electrons and neutrons (subatomic particles) 4. ...
... energy expanded from a hot dense mass with an incredibly small volume 2. at first, the universe was hot (10 32 C) and energy went rushing out in all directions energy became cooled enough to become matter 3. matter then cooled enough to form protons, electrons and neutrons (subatomic particles) 4. ...
models
... What theory suggests the following: -All matter concentrated into one point. -An explosion occurred and things started moving outward ...
... What theory suggests the following: -All matter concentrated into one point. -An explosion occurred and things started moving outward ...
Life2
... Decoupling of matter from radiation at about 379,000 years to form protons and electrons Radiation seen today as microwave background radiation Most of early universe made of about ¾ hydrogen, ¼ helium and trace (.000,000,001) of lithium. No elements produced with an atomic number higher than lithiu ...
... Decoupling of matter from radiation at about 379,000 years to form protons and electrons Radiation seen today as microwave background radiation Most of early universe made of about ¾ hydrogen, ¼ helium and trace (.000,000,001) of lithium. No elements produced with an atomic number higher than lithiu ...
Olber`s Paradox
... So if the universe is infinitely big then the sky should be bright But the sky is dark So the universe is not infinitely big So it should have collapsed ...
... So if the universe is infinitely big then the sky should be bright But the sky is dark So the universe is not infinitely big So it should have collapsed ...
ppt of lecture - July Lectures
... Is there anything left to understand? • Verification that the supernova and CMB results are correct • Measurement of all the cosmological parameters to a few % • Next tier of questions: why does the universe have this structure? ...
... Is there anything left to understand? • Verification that the supernova and CMB results are correct • Measurement of all the cosmological parameters to a few % • Next tier of questions: why does the universe have this structure? ...
Our place in the Universe
... 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! ...
Ch. 27.3 Star Groups
... One complete rotation in 200 million years. Our sun is about 30,000 light-years from the center. ...
... One complete rotation in 200 million years. Our sun is about 30,000 light-years from the center. ...
ITB - In the Beginning
... Developed in the late 1940’s by Gamow– named by Hoyle as an “insult” – it is the current basic model. Out of “nothingness”; the universe has a tiny, hot, beginning – then expands. As the energy-universe expands, it cools enough for matter to form (E=mc2), then atoms to form. Mutual gravity pulls the ...
... Developed in the late 1940’s by Gamow– named by Hoyle as an “insult” – it is the current basic model. Out of “nothingness”; the universe has a tiny, hot, beginning – then expands. As the energy-universe expands, it cools enough for matter to form (E=mc2), then atoms to form. Mutual gravity pulls the ...
Celestial Objects
... a) red shiftshift- shift toward longer red wavelengths of energy showing that an object is moving AWAY from Earth 1) the farther away the galaxy, the greater the red shift 2) almost all galaxies show a red shiftshiftproof that the universe is expanding (Edwin Hubble was the first to realize this!) ...
... a) red shiftshift- shift toward longer red wavelengths of energy showing that an object is moving AWAY from Earth 1) the farther away the galaxy, the greater the red shift 2) almost all galaxies show a red shiftshiftproof that the universe is expanding (Edwin Hubble was the first to realize this!) ...
Stars, Galaxies, and the Universe
... • A white dwarf is is a star that has used up all of its hydrogen and is the leftover center of an older star. • Class F stars are yellow-white • The majority of stars in our galaxy are main sequence stars. ...
... • A white dwarf is is a star that has used up all of its hydrogen and is the leftover center of an older star. • Class F stars are yellow-white • The majority of stars in our galaxy are main sequence stars. ...
Describe essential ideas about the composition and structure of the
... Illustrate how the positions of the stars and constellations change in relation to the Earth during an evening and from month to month. Identify equipment and instruments that explore the universe. Identify the accomplishments and contributions provided by selected past and present scientists ...
... Illustrate how the positions of the stars and constellations change in relation to the Earth during an evening and from month to month. Identify equipment and instruments that explore the universe. Identify the accomplishments and contributions provided by selected past and present scientists ...
Deep Space and Solar System
... • One light year is how far light travels in one year (based on distance NOT time) • We see all night stars as they were when the light we see left each star ...
... • One light year is how far light travels in one year (based on distance NOT time) • We see all night stars as they were when the light we see left each star ...
Lecture120202 - FSU High Energy Physics
... time = 10-35 to 10-33 seconds size went from 10-12 the size of a nucleus to 3 meters VERY rapid expansion ...
... time = 10-35 to 10-33 seconds size went from 10-12 the size of a nucleus to 3 meters VERY rapid expansion ...
Not a limitation
... What’s next? • Galaxies don’t seem to be slowing down (so Big Crunch is doubtful, or we’re still in a period of expansion) • Open universe: idea that not enough matter to keep it all together, and things keep expanding (like molecules from open jar) • Closed universe: idea that enough mass to pull ...
... What’s next? • Galaxies don’t seem to be slowing down (so Big Crunch is doubtful, or we’re still in a period of expansion) • Open universe: idea that not enough matter to keep it all together, and things keep expanding (like molecules from open jar) • Closed universe: idea that enough mass to pull ...
Then another Big Bang will occur and the
... As objects move away from the Earth they emit a Red Light called the Red Shift. This was seen using the Hubble Telescope. ...
... As objects move away from the Earth they emit a Red Light called the Red Shift. This was seen using the Hubble Telescope. ...
The Big Bang Theory
... toward an observer is squeezed; its frequency appears to increase and is therefore said to be blueshifted. In contrast, the radiation emitted by an object moving away is stretched or redshifted. Blueshifts and redshifts exhibited by stars, galaxies and gas clouds also indicate their motions with res ...
... toward an observer is squeezed; its frequency appears to increase and is therefore said to be blueshifted. In contrast, the radiation emitted by an object moving away is stretched or redshifted. Blueshifts and redshifts exhibited by stars, galaxies and gas clouds also indicate their motions with res ...
13800000000 Years Ago The First Sky
... What do they tell us ? Age of the Universe = 13800000000 Years Size of our Universe = 13800000000 Light Years = 100000000000000000000000 kilo-meters !!! ...
... What do they tell us ? Age of the Universe = 13800000000 Years Size of our Universe = 13800000000 Light Years = 100000000000000000000000 kilo-meters !!! ...
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.