Origin of the Universe
... • 1987 Light from supernova 1987 reaches Earth – The light from this supernova reaches earth, 170,000 years after is parent star exploded. Underground sensors in the United States and Japan first detect a wave of subatomic particles known as neutrinos from the explosion. Astronomers rush to telescop ...
... • 1987 Light from supernova 1987 reaches Earth – The light from this supernova reaches earth, 170,000 years after is parent star exploded. Underground sensors in the United States and Japan first detect a wave of subatomic particles known as neutrinos from the explosion. Astronomers rush to telescop ...
10 Scientific Laws and Theories You Really Should Know
... empirical evidence and coming up with conclusions. – other scientists must be able to replicate the results if the experiment is destined to become the basis for a widely accepted law or theory. ...
... empirical evidence and coming up with conclusions. – other scientists must be able to replicate the results if the experiment is destined to become the basis for a widely accepted law or theory. ...
ppt document
... Dark Matter The amount of visible mass (from stars) right now accounts for only about 10% of the mass necessary to have a finite (closed) universe. However, when we look at the motions of the galaxies, we find that there appears to be more mass in them than the stars can account for. This “dark mat ...
... Dark Matter The amount of visible mass (from stars) right now accounts for only about 10% of the mass necessary to have a finite (closed) universe. However, when we look at the motions of the galaxies, we find that there appears to be more mass in them than the stars can account for. This “dark mat ...
Lecture010704 - Florida State University
... There is nothing special about our place in the Universe The Universe is isotropic ...
... There is nothing special about our place in the Universe The Universe is isotropic ...
3_Ocean126_2006
... First iteration proposed by Georges Lemaître in 1927. He observed the red shift in distant nebulas and invoked relativity. Hubble found experimental evidence (1929) – galaxies are moving away from us with speeds proportional to their distance. Theory suggested because it explains the expansion ...
... First iteration proposed by Georges Lemaître in 1927. He observed the red shift in distant nebulas and invoked relativity. Hubble found experimental evidence (1929) – galaxies are moving away from us with speeds proportional to their distance. Theory suggested because it explains the expansion ...
in the Universe
... The mass between us and Virgo tends to decelerate the recession of our galaxy relative to Virgo, as expected according to Hubble's law, by about 10 percent. –deviation from the uniform Hubble expansion can be mapped out for the galaxies throughout this region, and provides a measure of the mean dens ...
... The mass between us and Virgo tends to decelerate the recession of our galaxy relative to Virgo, as expected according to Hubble's law, by about 10 percent. –deviation from the uniform Hubble expansion can be mapped out for the galaxies throughout this region, and provides a measure of the mean dens ...
The Universe - Cloudfront.net
... Concept Check What relationship did Hubble discover between red shifts and the distances of galaxies from Earth? Galaxies that have the greatest red shifts are the most distant. ...
... Concept Check What relationship did Hubble discover between red shifts and the distances of galaxies from Earth? Galaxies that have the greatest red shifts are the most distant. ...
dark - The Institute of Mathematical Sciences
... If you know the approximate masses of the planets, you can do better than that. Each planet's orbit and mass allow you to calculate the mass of the object the planet is orbiting. You will ger roughly the same mass for all of the planets. So you can conclude that the object the planets are orbiting m ...
... If you know the approximate masses of the planets, you can do better than that. Each planet's orbit and mass allow you to calculate the mass of the object the planet is orbiting. You will ger roughly the same mass for all of the planets. So you can conclude that the object the planets are orbiting m ...
How many galaxies are there in the Universe?
... 2. How many galaxies in this section of sky? Look at the image closely. Almost every one of the objects you see is a distant galaxy. (Any foreground stars are easily identifiable by the ‘diffraction spike’ pattern surrounding them, as shown on the right.) Count how many galaxies there are in each re ...
... 2. How many galaxies in this section of sky? Look at the image closely. Almost every one of the objects you see is a distant galaxy. (Any foreground stars are easily identifiable by the ‘diffraction spike’ pattern surrounding them, as shown on the right.) Count how many galaxies there are in each re ...
Cosmic Dawn A Hunting for the First Stars in the Universe
... Typically we measure redshifts by comparing a whole suite of lines measured in the lab with the astronomical spectrum, to see that their wavelengths are all boosted by the same factor of (1+z). Because we live in an expanding universe, each object’s recession velocity (and hence its redshift) is pro ...
... Typically we measure redshifts by comparing a whole suite of lines measured in the lab with the astronomical spectrum, to see that their wavelengths are all boosted by the same factor of (1+z). Because we live in an expanding universe, each object’s recession velocity (and hence its redshift) is pro ...
What we will do today:
... The Big Bang Theory took place around 13.8 billion years ago. The universe was originally very hot and very dense concentrated in a tiny point known as a singularity (smaller than an atom). It caused our universe to expand suddenly from the singularity bringing time and space into existence. Followi ...
... The Big Bang Theory took place around 13.8 billion years ago. The universe was originally very hot and very dense concentrated in a tiny point known as a singularity (smaller than an atom). It caused our universe to expand suddenly from the singularity bringing time and space into existence. Followi ...
FUAP:
FAR
UNIVERSE
ADVISORY
PANEL
Bob
Nichol
(ICG
Portsmouth)
... has underpinned this work with world-leading theoretical expertise and it is essential to maintain this if we are to capitalise on the scientific potential of our observational programmes “ Colless et al. 2001 ...
... has underpinned this work with world-leading theoretical expertise and it is essential to maintain this if we are to capitalise on the scientific potential of our observational programmes “ Colless et al. 2001 ...
Big Bang and Steady State Theories
... red-shift and CMBR give supporting evidence for the Big Bang theory, e.g. light was seen to be shifted towards a longer wavelength. This means that the galaxies are moving away from each other so the Universe must be expanding. This is evidence for the Big Bang theory. Cosmic Background Radiation co ...
... red-shift and CMBR give supporting evidence for the Big Bang theory, e.g. light was seen to be shifted towards a longer wavelength. This means that the galaxies are moving away from each other so the Universe must be expanding. This is evidence for the Big Bang theory. Cosmic Background Radiation co ...
UA Glossary2 - Berkeley Center for Cosmological Physics
... Frame of Reference- The perspective from which an event is viewed. For example, a man is standing on the side of the road, and he sees a woman drive past him in a car. From the man's frame of reference, he is stationary and the woman is speeding past him at 40 miles per hour. However, from the woman ...
... Frame of Reference- The perspective from which an event is viewed. For example, a man is standing on the side of the road, and he sees a woman drive past him in a car. From the man's frame of reference, he is stationary and the woman is speeding past him at 40 miles per hour. However, from the woman ...
Essential Questions
... During the Smart Notebook lesson designed to introduce concepts, students will be continually questioned on these concepts using a combination of class work/homework questions and the SMART Response system. Classwork and Homework questions will be discussed as a class and misconceptions will be addr ...
... During the Smart Notebook lesson designed to introduce concepts, students will be continually questioned on these concepts using a combination of class work/homework questions and the SMART Response system. Classwork and Homework questions will be discussed as a class and misconceptions will be addr ...
hot
... stable lifetimes of such stars elements that are more massive than iron form during supernova events ...
... stable lifetimes of such stars elements that are more massive than iron form during supernova events ...
How Did We Wind Up in Such an Unlikely Universe?
... strange beings as us. We are a part of the universe that is around to ask what had to happen to enable us to exist. To answer such a question we first have to ask how the universe came into existence and how did it develop into what we see around us today. All the evidence from our astronomy and ast ...
... strange beings as us. We are a part of the universe that is around to ask what had to happen to enable us to exist. To answer such a question we first have to ask how the universe came into existence and how did it develop into what we see around us today. All the evidence from our astronomy and ast ...
Document
... (iv) Early in its formation the cloud was approximately spherical with a diameter of 6 AU and a temperature of 100 K. Show that the gas pressure inside the giant molecular cloud was about 1 Pa. The gas cloud behaves as an ideal gas. ...
... (iv) Early in its formation the cloud was approximately spherical with a diameter of 6 AU and a temperature of 100 K. Show that the gas pressure inside the giant molecular cloud was about 1 Pa. The gas cloud behaves as an ideal gas. ...
Y13 Cosmology HW booklet
... (iv) Early in its formation the cloud was approximately spherical with a diameter of 6 AU and a temperature of 100 K. Show that the gas pressure inside the giant molecular cloud was about 1 Pa. The gas cloud behaves as an ideal gas. ...
... (iv) Early in its formation the cloud was approximately spherical with a diameter of 6 AU and a temperature of 100 K. Show that the gas pressure inside the giant molecular cloud was about 1 Pa. The gas cloud behaves as an ideal gas. ...
Review4
... quasars? Why do the components of some quasars seem to be moving apart faster than the speed of light? To what extent are galaxies found in clusters rather than in isolation? Are galaxies in clusters different from galaxies not in clusters? What evidence do we have that there is dark matter? How are ...
... quasars? Why do the components of some quasars seem to be moving apart faster than the speed of light? To what extent are galaxies found in clusters rather than in isolation? Are galaxies in clusters different from galaxies not in clusters? What evidence do we have that there is dark matter? How are ...
Answers The Universe Year 10 Science Chapter 6
... 2 We belong to the Milky Way galaxy. 3 Cosmology is the study of the origin , the growth, the evolution, and the eventual fate of the universe. 4 Astronomy is the study of nebulae, galaxies, stars, planets, moons, comets, and asteroids. 5 Astrophysics is the study of the physical laws and theori ...
... 2 We belong to the Milky Way galaxy. 3 Cosmology is the study of the origin , the growth, the evolution, and the eventual fate of the universe. 4 Astronomy is the study of nebulae, galaxies, stars, planets, moons, comets, and asteroids. 5 Astrophysics is the study of the physical laws and theori ...
Support worksheet – Topic 3 Questions
... Cepheid variable stars are called ‘standard candles’. State what this means. ...
... Cepheid variable stars are called ‘standard candles’. State what this means. ...
Characteristics Of The Universe Origin Of Universe
... It has not yet been scientifically determined exactly how large the universe is. It may indeed be infinitely large, but we have no way yet to confirm this possibility scientifically. What Is The Structure Of The Universe? The structure of the universe—as opposed to the structure of matter in the uni ...
... It has not yet been scientifically determined exactly how large the universe is. It may indeed be infinitely large, but we have no way yet to confirm this possibility scientifically. What Is The Structure Of The Universe? The structure of the universe—as opposed to the structure of matter in the uni ...
Big Bang
The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution. The model accounts for the fact that the universe expanded from a very high density and high temperature state, and offers a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background, large scale structure, and Hubble's Law. If the known laws of physics are extrapolated beyond where they are valid, there is a singularity. Modern measurements place this moment at approximately 13.8 billion years ago, which is thus considered the age of the universe. After the initial expansion, the universe cooled sufficiently to allow the formation of subatomic particles, and later simple atoms. Giant clouds of these primordial elements later coalesced through gravity to form stars and galaxies.Since Georges Lemaître first noted, in 1927, that an expanding universe might be traced back in time to an originating single point, scientists have built on his idea of cosmic expansion. While the scientific community was once divided between supporters of two different expanding universe theories, the Big Bang and the Steady State theory, accumulated empirical evidence provides strong support for the former. In 1929, from analysis of galactic redshifts, Edwin Hubble concluded that galaxies are drifting apart, important observational evidence consistent with the hypothesis of an expanding universe. In 1965, the cosmic microwave background radiation was discovered, which was crucial evidence in favor of the Big Bang model, since that theory predicted the existence of background radiation throughout the universe before it was discovered. More recently, measurements of the redshifts of supernovae indicate that the expansion of the universe is accelerating, an observation attributed to dark energy's existence. The known physical laws of nature can be used to calculate the characteristics of the universe in detail back in time to an initial state of extreme density and temperature.