History of the Universe and Solar System
... No, gravitational forces have slowed down the galaxies since the Big Bang. (Note: Recent observations suggest this was the case for the first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phantom e ...
... No, gravitational forces have slowed down the galaxies since the Big Bang. (Note: Recent observations suggest this was the case for the first 2/3 of the Universe’s history. The expansion rate now seems to have increased for the last 1/3 of the Universe’s history. This is explained by “dark phantom e ...
File
... separate from matter, and universe bursts forth with light (This liberation of photons is what we observe today as the 3K background radiation permeating the universe) ...
... separate from matter, and universe bursts forth with light (This liberation of photons is what we observe today as the 3K background radiation permeating the universe) ...
Origins of the Universe
... from each other, but they appear grouped together when viewed from Earth • One of the 88 sectors into which astronomers divide the sphere of the skynamed after a traditional constellation in that sector • Patterns of constellations are dynamic; therefore, the constellations of 100,000 years ago are ...
... from each other, but they appear grouped together when viewed from Earth • One of the 88 sectors into which astronomers divide the sphere of the skynamed after a traditional constellation in that sector • Patterns of constellations are dynamic; therefore, the constellations of 100,000 years ago are ...
Ch. 28 Test Topics
... -Know that the faster the source of light is moving the greater the shift of light. -Know that Edwin Hubble discovered that the farther away a galaxy was, the faster it was moving away from Earth. -Know the universe is continually expanding and how we know this. -Be able to describe the Big Bang the ...
... -Know that the faster the source of light is moving the greater the shift of light. -Know that Edwin Hubble discovered that the farther away a galaxy was, the faster it was moving away from Earth. -Know the universe is continually expanding and how we know this. -Be able to describe the Big Bang the ...
ASTRONOMY WORKSHOP
... Time is relative, so it depends on where you are. The faster you move, the slower time moves. Mass appears to increase: If an object is moving at high speed relative to you, the object will appear to behave strangely. Its mass will increase, so that it becomes harder and harder to accelerate as it a ...
... Time is relative, so it depends on where you are. The faster you move, the slower time moves. Mass appears to increase: If an object is moving at high speed relative to you, the object will appear to behave strangely. Its mass will increase, so that it becomes harder and harder to accelerate as it a ...
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)? ...
PowerPoint
... – Presence of brightest stars in a galaxy by type – Presence of globular star clusters – Presence of supernovas by type (I and II) ...
... – Presence of brightest stars in a galaxy by type – Presence of globular star clusters – Presence of supernovas by type (I and II) ...
Astronomy Quiz #1 Answers
... -they have large amounts of dust and gas 9. Explain why looking at a star in the night sky is like looking back in time. (2 – COM) -the light we see was emitted, then travelled some distance to get to us. It takes time to get the light to Earth, so we are seeing light that has been produced in the p ...
... -they have large amounts of dust and gas 9. Explain why looking at a star in the night sky is like looking back in time. (2 – COM) -the light we see was emitted, then travelled some distance to get to us. It takes time to get the light to Earth, so we are seeing light that has been produced in the p ...
Nineteenth lecture
... HOME. (Ever wonder why all the planets except for Pluto rotate in the same direction around the sun, in a flat plane?) ...
... HOME. (Ever wonder why all the planets except for Pluto rotate in the same direction around the sun, in a flat plane?) ...
The Universe - staff.harrisonburg.k12.va
... • Hubble telescope a telescope that orbits the earth outside our atmosphere. • It provides us with many of the images we have of space. • It is an especially useful telescope because it does not have to view things through our atmosphere ...
... • Hubble telescope a telescope that orbits the earth outside our atmosphere. • It provides us with many of the images we have of space. • It is an especially useful telescope because it does not have to view things through our atmosphere ...
The Universe
... • Hubble telescope a telescope that orbits the earth outside our atmosphere. • It provides us with many of the images we have of space. • It is an especially useful telescope because it does not have to view things through our atmosphere ...
... • Hubble telescope a telescope that orbits the earth outside our atmosphere. • It provides us with many of the images we have of space. • It is an especially useful telescope because it does not have to view things through our atmosphere ...
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. ...
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! ...
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. ...
Slide 1
... to imagine a giant explosion. Experts however say that there was no explosion; there was (and continues to be) an expansion. Rather than imagining a balloon popping and releasing its contents, imagine a balloon expanding: an infinitesimally small balloon expanding to the size of our current universe ...
... to imagine a giant explosion. Experts however say that there was no explosion; there was (and continues to be) an expansion. Rather than imagining a balloon popping and releasing its contents, imagine a balloon expanding: an infinitesimally small balloon expanding to the size of our current universe ...
Chapter 7 Review Answers
... 11.When the universe cooled and the wavelengths lengthened, scientists wondered where that extra energy created by the hot, short wavelengths 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 th ...
... 11.When the universe cooled and the wavelengths lengthened, scientists wondered where that extra energy created by the hot, short wavelengths 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 th ...
PARTS OF THE UNIVERSE
... v Parallax: apparent shift in the position of an object when view from two different locations. v Parallax Example v Can be used to measure the distance of stars from Earth that are relatively close. v Proxima Centauri: closest star to earth v (4.3 light years away – 40 trillion km) ...
... v Parallax: apparent shift in the position of an object when view from two different locations. v Parallax Example v Can be used to measure the distance of stars from Earth that are relatively close. v Proxima Centauri: closest star to earth v (4.3 light years away – 40 trillion km) ...
Galaxies and the Universe
... • It just came out that way • It has to be that way for reasons we haven’t yet discovered • Maybe there are an infinity of universes but only those with certain parameters develop intelligent life (Multiverse) • Engineered or designed ...
... • It just came out that way • It has to be that way for reasons we haven’t yet discovered • Maybe there are an infinity of universes but only those with certain parameters develop intelligent life (Multiverse) • Engineered or designed ...
Lambda-CDM model
The ΛCDM (Lambda cold dark matter) or Lambda-CDM model is a parametrization of the Big Bang cosmological model in which the universe contains a cosmological constant, denoted by Lambda (Greek Λ), associated with dark energy, and cold dark matter (abbreviated CDM). It is frequently referred to as the standard model of Big Bang cosmology, because it is the simplest model that provides a reasonably good account of the following properties of the cosmos: the existence and structure of the cosmic microwave background the large-scale structure in the distribution of galaxies the abundances of hydrogen (including deuterium), helium, and lithium the accelerating expansion of the universe observed in the light from distant galaxies and supernovaeThe model assumes that general relativity is the correct theory of gravity on cosmological scales.It emerged in the late 1990s as a concordance cosmology, after a period of time when disparate observed properties of the universe appeared mutually inconsistent, and there was no consensus on the makeup of the energy density of the universe.The ΛCDM model can be extended by adding cosmological inflation, quintessence and other elements that are current areas of speculation and research in cosmology.Some alternative models challenge the assumptions of the ΛCDM model. Examples of these are modified Newtonian dynamics, modified gravity and theories of large-scale variations in the matter density of the universe.