The Scales of Things
... The Solar Neighborhood Some stars are within about 2 x 1014 km (~ 20 light-years) ...
... The Solar Neighborhood Some stars are within about 2 x 1014 km (~ 20 light-years) ...
BBN + Inflation
... was easy to make nuclei by adding one p or n at time. For example: p+n D+, D+p 3He+, 3He+n 4He+ ...
... was easy to make nuclei by adding one p or n at time. For example: p+n D+, D+p 3He+, 3He+n 4He+ ...
Cosmology - 2015 - johndistefano.com.au
... under the influence of gravity began to collapse into stars and then into galaxies. About 4.6 billion years ago a star was born and a planet we call Earth formed about the debris of material expelled by this star we ...
... under the influence of gravity began to collapse into stars and then into galaxies. About 4.6 billion years ago a star was born and a planet we call Earth formed about the debris of material expelled by this star we ...
The Size of the Universe (1920) Harlow Shapley Heber Curtis
... • Our Galaxy is very large, with Sun far from center. • 300,000 LY diameter. • Sun 60,000 LY from center. ...
... • Our Galaxy is very large, with Sun far from center. • 300,000 LY diameter. • Sun 60,000 LY from center. ...
Stefan-Boltzmann`s law Wien`s law
... █ State one piece of evidence that indicates that the Universe is expanding. ► light from distant galaxies/stars is red-shifted (which means they move away from us – as the red-shifting occurs in all direction, the universe must be expanding) ► existence of CMB ► the helium abundance in the universe ...
... █ State one piece of evidence that indicates that the Universe is expanding. ► light from distant galaxies/stars is red-shifted (which means they move away from us – as the red-shifting occurs in all direction, the universe must be expanding) ► existence of CMB ► the helium abundance in the universe ...
Class 28 (Jun 2) - Physics at Oregon State University
... • Thanks to the Hubble Law, we can estimate the age of the universe. • At some point in the distant past, matter in the universe must have been densely packed. • From this point, the universe would have expanded at some high speed to become today’s universe. • Assuming a constant expansion over time ...
... • Thanks to the Hubble Law, we can estimate the age of the universe. • At some point in the distant past, matter in the universe must have been densely packed. • From this point, the universe would have expanded at some high speed to become today’s universe. • Assuming a constant expansion over time ...
PowerPoint No. 7 -- The Cosmological Argument (II)
... reasons explaining why they exist. – Rather, in principle unpredictability, at most, proves that the sufficient reasons for the existence of some things, in principle, cannot be (fully) known, at least by any finite mind. ...
... reasons explaining why they exist. – Rather, in principle unpredictability, at most, proves that the sufficient reasons for the existence of some things, in principle, cannot be (fully) known, at least by any finite mind. ...
Our Cosmos = Holographic 4D
... oscillations per second. This is what physicists call “the rest mass of a particle.” The middle spring-wave shows more oscillations fitting into the same 1 second time gap and represents a particle moving at about 20% of the speed of light. The right most spring represents a particle moving at about ...
... oscillations per second. This is what physicists call “the rest mass of a particle.” The middle spring-wave shows more oscillations fitting into the same 1 second time gap and represents a particle moving at about 20% of the speed of light. The right most spring represents a particle moving at about ...
Chapter 31 - The Galaxy & Universe
... A. This could be used to tell the outcome of the Universe B. Universe’s expansion should be getting slower C. We observed it’s actually expanding faster ...
... A. This could be used to tell the outcome of the Universe B. Universe’s expansion should be getting slower C. We observed it’s actually expanding faster ...
May 2009 Tz 2
... Observations of the night sky indicate that there are many regions of the universe that do not contain any stars. ...
... Observations of the night sky indicate that there are many regions of the universe that do not contain any stars. ...
GY 112 Lecture Notes - University of South Alabama
... origin of the Universe. For example, using physical laws, scientists estimated that a Big Bang origin to the Universe would have produced matter consisting almost entirely of hydrogen and helium (75% to 25% respectively). This is pretty close to what we see in the Universe now, which makes the physi ...
... origin of the Universe. For example, using physical laws, scientists estimated that a Big Bang origin to the Universe would have produced matter consisting almost entirely of hydrogen and helium (75% to 25% respectively). This is pretty close to what we see in the Universe now, which makes the physi ...
Astronomy - SAVE MY EXAMS!
... (iii) One theory of the origin of the Universe predicted that there should be cosmic background radiation with a wavelength of about 1 mm. Explain why scientists had to wait until the development of space flight before they could study this radiation in detail. ...
... (iii) One theory of the origin of the Universe predicted that there should be cosmic background radiation with a wavelength of about 1 mm. Explain why scientists had to wait until the development of space flight before they could study this radiation in detail. ...
ASTRONOMY WEBQUEST…… EXPLORE THE UNIVERSE
... 11. What happened following the Big Bang to allow protons and neutrons to come together to form atoms and eventually atoms to come together to form different elements? __________________________________________________________________________________ http://map.gsfc.nasa.gov/universe/bb_tests.html ...
... 11. What happened following the Big Bang to allow protons and neutrons to come together to form atoms and eventually atoms to come together to form different elements? __________________________________________________________________________________ http://map.gsfc.nasa.gov/universe/bb_tests.html ...
Watching Galaxies Form Near the Beginning of Time
... • Features in the spectra of galaxies are essentially always observed at wavelengths longer than the corresponding features in laboratories on Earth (the “redshift”). • The cosmological redshift is not exactly a Doppler shift, but is linked to the expansion of space as light propagates as well as th ...
... • Features in the spectra of galaxies are essentially always observed at wavelengths longer than the corresponding features in laboratories on Earth (the “redshift”). • The cosmological redshift is not exactly a Doppler shift, but is linked to the expansion of space as light propagates as well as th ...
Physics worksheets- P1 Topic 3 The Universe
... Tick the boxes to show which theory each idea is part of. Some ideas will have ticks in both columns. Steady Big Idea State Bang Space is expanding The Universe started about 13.5 billion years ago Matter is continually being created All matter was created at the beginning of the Universe We can det ...
... Tick the boxes to show which theory each idea is part of. Some ideas will have ticks in both columns. Steady Big Idea State Bang Space is expanding The Universe started about 13.5 billion years ago Matter is continually being created All matter was created at the beginning of the Universe We can det ...
A Cosmic End: From the Earth to the Universe
... We have a good picture of the early universe. As T.S. Elliot said, “In my beginning is my end ”; in the initial conditions of the Universe is written somehow its end. Though there are many unknowns, our current understanding of Physics allows us to reconstruct the history of the universe since the u ...
... We have a good picture of the early universe. As T.S. Elliot said, “In my beginning is my end ”; in the initial conditions of the Universe is written somehow its end. Though there are many unknowns, our current understanding of Physics allows us to reconstruct the history of the universe since the u ...
26.5 The Expanding Universe
... This relationship, called Hubble’s Law, says that the speed at which a galaxy is moving away is proportional to its distance from us. The most distant observed galaxies are moving away at more than 90 percent of the speed of light! ...
... This relationship, called Hubble’s Law, says that the speed at which a galaxy is moving away is proportional to its distance from us. The most distant observed galaxies are moving away at more than 90 percent of the speed of light! ...
Galaxies
... Light from moving objects will appear to have different wavelengths depending on the relative motion of the source and the observer. Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looki ...
... Light from moving objects will appear to have different wavelengths depending on the relative motion of the source and the observer. Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looki ...
Universe and Stars Project Final Due Date
... 2. Describe scientific explanations and conditions that explain and contributed to the origin of life on Earth (give at least 3 examples of conditions that contributed to life on Earth). http://www.ecology.com/2011/09/10/earths-beginnings-origins-life/ 3. Describe how the universe is organized and w ...
... 2. Describe scientific explanations and conditions that explain and contributed to the origin of life on Earth (give at least 3 examples of conditions that contributed to life on Earth). http://www.ecology.com/2011/09/10/earths-beginnings-origins-life/ 3. Describe how the universe is organized and w ...
The Big Bang Theory
... Inflation of the universe solves the flatness problem. Take a balloon as example. If the balloon expands in size, to an ant on the balloon surface, the balloon looks perfectly flat when the expansion was over.. During the period of inflation, the universe expanded enormously at a very short time, ab ...
... Inflation of the universe solves the flatness problem. Take a balloon as example. If the balloon expands in size, to an ant on the balloon surface, the balloon looks perfectly flat when the expansion was over.. During the period of inflation, the universe expanded enormously at a very short time, ab ...
Wien`s law - Uplift Education
... • Perhaps the Universe is not infinite. But current model of the Universe is that it is infinite. • Perhaps the light is absorbed before it gets to us. But then Universe would warm up and eventually reradiate energy. Real help: the Big Bang model leads to the idea that the observable universe is not ...
... • Perhaps the Universe is not infinite. But current model of the Universe is that it is infinite. • Perhaps the light is absorbed before it gets to us. But then Universe would warm up and eventually reradiate energy. Real help: the Big Bang model leads to the idea that the observable universe is not ...
QUASARS and ACTIVE GALAXIES
... We now understand the power source: rapidly rotating supermassive black holes (SMBHs) (very efficient energy producers) in the central cores of galaxies More recently, we have been able to show that some quasars are indeed embedded in faint fuzzy patches (the host galaxies); and there is considerabl ...
... We now understand the power source: rapidly rotating supermassive black holes (SMBHs) (very efficient energy producers) in the central cores of galaxies More recently, we have been able to show that some quasars are indeed embedded in faint fuzzy patches (the host galaxies); and there is considerabl ...
Stars - Stallion Science
... • Universe: consists of all space, matter and energy that exists- now, in the past or in the future • Since distances are so far we use large units to express the distances between objects. • It takes time for light to travel in space • We see the universe now as it was in the past ...
... • Universe: consists of all space, matter and energy that exists- now, in the past or in the future • Since distances are so far we use large units to express the distances between objects. • It takes time for light to travel in space • We see the universe now as it was in the past ...