The Milky Way powepoint
... diagram at right. What is observed instead is that rotation curves tend to remain high as far out as they can be measured. This means the existence of massive halos of dark matter in galaxies. The nature of the material comprising this dark matter is completely unknown at present, making this one of ...
... diagram at right. What is observed instead is that rotation curves tend to remain high as far out as they can be measured. This means the existence of massive halos of dark matter in galaxies. The nature of the material comprising this dark matter is completely unknown at present, making this one of ...
THE INCREDIBLE ORIGIN OF THE CHEMICAL ELEMENTS
... ELEMENTS – INCLUDING THOSE IN YOUR OWN BODY! Hydrogen and helium - made in the Big Bang According to most cosmologists the Universe began in a "Big Bang" - a kind of cosmic explosion in which all the matter and energy that would ever exist were created - about 15 billion (15 000 million) years ago. ...
... ELEMENTS – INCLUDING THOSE IN YOUR OWN BODY! Hydrogen and helium - made in the Big Bang According to most cosmologists the Universe began in a "Big Bang" - a kind of cosmic explosion in which all the matter and energy that would ever exist were created - about 15 billion (15 000 million) years ago. ...
Astronomy (ASTR)
... Prerequisite(s): ASTR 130* or PHYS 130 ASTR 301 Astrophysical Concepts 3 Credit Hours A one-semester course introducing the Physical concepts used in Modern Astrophysics, with an emphasis on the application of these ideas to Astrophysical objects. The course familiarizes the student with the ...
... Prerequisite(s): ASTR 130* or PHYS 130 ASTR 301 Astrophysical Concepts 3 Credit Hours A one-semester course introducing the Physical concepts used in Modern Astrophysics, with an emphasis on the application of these ideas to Astrophysical objects. The course familiarizes the student with the ...
Tour of the Universe
... ● Some ancient societies used them for religious reasons. ● Today they are used for telescopic study. ● Some of the stars are much closer to Earth than others. Because of proper motion, they will look different in ten thousand years. ● These stars are not held together by gravity. ● Proper mot ...
... ● Some ancient societies used them for religious reasons. ● Today they are used for telescopic study. ● Some of the stars are much closer to Earth than others. Because of proper motion, they will look different in ten thousand years. ● These stars are not held together by gravity. ● Proper mot ...
The Genesis of the Elements
... elementary particles into a “nucleus” This exploded! Dispersed the matter uniformly as neutrons These neutrons then decayed ...
... elementary particles into a “nucleus” This exploded! Dispersed the matter uniformly as neutrons These neutrons then decayed ...
Heic0116: EMBARGOED UNTIL: 20:00 (CET) WEDNESDAY 05
... and focus it into our telescopes. The MACHO is acting as a gravitational lens, increasing the brightness of the background star for the short time it takes for the MACHO to pass by. Depending on the mass of the MACHO and its distance from Earth, this period of brightening can last days, weeks or mon ...
... and focus it into our telescopes. The MACHO is acting as a gravitational lens, increasing the brightness of the background star for the short time it takes for the MACHO to pass by. Depending on the mass of the MACHO and its distance from Earth, this period of brightening can last days, weeks or mon ...
File
... To show that light is broken into many colors. Red light has a longer, more stretched-out wavelength. Galaxies that are moving away from us appear red. This shows that the universe is expanding, which supports the Big Bang theory. ...
... To show that light is broken into many colors. Red light has a longer, more stretched-out wavelength. Galaxies that are moving away from us appear red. This shows that the universe is expanding, which supports the Big Bang theory. ...
Earth and Space - Kennesaw State University College of Science
... about 4000°K) enough so that light could pass “through” empty space without bumping into matter – The universe continued to expand and cool, to its present temperature of about 4°K. The first galaxies were formed about 1 billion years ago – The estimated age of the current universe is between 12 and ...
... about 4000°K) enough so that light could pass “through” empty space without bumping into matter – The universe continued to expand and cool, to its present temperature of about 4°K. The first galaxies were formed about 1 billion years ago – The estimated age of the current universe is between 12 and ...
POISE AND EVOLUTION OF THE GALAXY : STRUCTURE ,
... to ensure such a galactic confinement of cosmic rays. Moreover, to be effective, the overall magnetic field for galactic confinement should still stay roughly, but uniformly, perpendicular to the Galaxy plane. Actually, there is no compelling reason for it : magnetic star fields contributing, in fac ...
... to ensure such a galactic confinement of cosmic rays. Moreover, to be effective, the overall magnetic field for galactic confinement should still stay roughly, but uniformly, perpendicular to the Galaxy plane. Actually, there is no compelling reason for it : magnetic star fields contributing, in fac ...
ASTRONOMY WEBQUEST…… EXPLORE THE UNIVERSE
... Date February 23, 2012 Answer all of the questions by typing them on this document. Save your work and then attach this document to an e-mail to me. I am Mr. Aguilar, your 8th grade science teacher. 1. If your home is your universe, how would you like your home to be? Would you like your home to be ...
... Date February 23, 2012 Answer all of the questions by typing them on this document. Save your work and then attach this document to an e-mail to me. I am Mr. Aguilar, your 8th grade science teacher. 1. If your home is your universe, how would you like your home to be? Would you like your home to be ...
the text the talk here
... question can be phrased as: What does it take for an individual human to be a good person? This question may seem to have little to do with cosmology. However, in the concluding part of Ethics Aristotle holds that contemplation is the highest form of moral activity because it is continuous, pleasant ...
... question can be phrased as: What does it take for an individual human to be a good person? This question may seem to have little to do with cosmology. However, in the concluding part of Ethics Aristotle holds that contemplation is the highest form of moral activity because it is continuous, pleasant ...
Dark Matter: What is it?
... • We detect neutrinos from the Sun and from other sources. Although detecting neutrinos is difficult, it has been done! ...
... • We detect neutrinos from the Sun and from other sources. Although detecting neutrinos is difficult, it has been done! ...
astronomy webquest…… explore the universe
... Stars and planets are made from gases in a __________________. The Milky Way Galaxy is approximately _______________ light years across. How much longer will our Sun last? _________________________ Lifetimes of stars range from ___________ to ____________ years. Our star orbits the centre of our gal ...
... Stars and planets are made from gases in a __________________. The Milky Way Galaxy is approximately _______________ light years across. How much longer will our Sun last? _________________________ Lifetimes of stars range from ___________ to ____________ years. Our star orbits the centre of our gal ...
Focus Week: Messengers of Supernova Explosions
... the host galaxy that contains more than 10 or 100 billions of stars, that the light even from the supernovae taking place far away in the Universe is detectable on the Earth. Observations such as these led to the discovery of dark energy in the Universe. To identify the nature of this enigmatic dark ...
... the host galaxy that contains more than 10 or 100 billions of stars, that the light even from the supernovae taking place far away in the Universe is detectable on the Earth. Observations such as these led to the discovery of dark energy in the Universe. To identify the nature of this enigmatic dark ...
Beatrice Muriel Hill Tinsley
... formed and the age of the galaxy. And the output could be given as the time-history of the luminosity, colour, chemical composition, and residual gas mass of the model. The first happy result was that models 10-15 billion years old tended to look a lot like real galaxies today. Beatrice’s thesis, pu ...
... formed and the age of the galaxy. And the output could be given as the time-history of the luminosity, colour, chemical composition, and residual gas mass of the model. The first happy result was that models 10-15 billion years old tended to look a lot like real galaxies today. Beatrice’s thesis, pu ...
Hubble`s Expansion of the Universe
... Calculating the Hubble Constant Once you have values for both radial velocity and distance for multiple galaxies, you can begin to produce a plot like Hubble’s in Figure 1. Here, you can see that the line of best fit is linear (straight). By calculating the gradient of this line, we obtain a value t ...
... Calculating the Hubble Constant Once you have values for both radial velocity and distance for multiple galaxies, you can begin to produce a plot like Hubble’s in Figure 1. Here, you can see that the line of best fit is linear (straight). By calculating the gradient of this line, we obtain a value t ...
COMING EVENTS The Pluto Files Volume 37 Number 03 March
... star parties are scheduled as well. For more information, please contact the club officers:our president, Rick Heschmeyer at [email protected], our webmaster, Gary Webber, at [email protected], or our faculty advisor, Prof. Bruce Twarog at [email protected]. Because of the flexibility of the schedule du ...
... star parties are scheduled as well. For more information, please contact the club officers:our president, Rick Heschmeyer at [email protected], our webmaster, Gary Webber, at [email protected], or our faculty advisor, Prof. Bruce Twarog at [email protected]. Because of the flexibility of the schedule du ...
Old Final
... D) the star's binary companion periodically blocks the pulsar's constant radio emission E) a black hole near the star absorbs the pulsar's energy and remits it as radio waves 34. The wavelength at which a blackbody emits the most energy is dependent on: ...
... D) the star's binary companion periodically blocks the pulsar's constant radio emission E) a black hole near the star absorbs the pulsar's energy and remits it as radio waves 34. The wavelength at which a blackbody emits the most energy is dependent on: ...
The Interstellar Medium
... First idea was to have a debate on relativity: As to relativity, I must confess that I would rather have a subject in which there would be a half dozen members of the Academy competent enough to understand at least a few words of what the speakers were saying if we had a symposium upon it. I pray to ...
... First idea was to have a debate on relativity: As to relativity, I must confess that I would rather have a subject in which there would be a half dozen members of the Academy competent enough to understand at least a few words of what the speakers were saying if we had a symposium upon it. I pray to ...
ISP 205: Visions of the Universe
... • How big is the universe? – The observable universe is 14 billion light-years in radius (no it is considerably bigger and depends upon the expansion rate and the history of the expansion rate which has changed) and contains over 100 billion galaxies with a total number of stars comparable to the nu ...
... • How big is the universe? – The observable universe is 14 billion light-years in radius (no it is considerably bigger and depends upon the expansion rate and the history of the expansion rate which has changed) and contains over 100 billion galaxies with a total number of stars comparable to the nu ...
Non-standard cosmology
A non-standard cosmology is any physical cosmological model of the universe that has been, or still is, proposed as an alternative to the Big Bang model of standard physical cosmology. In the history of cosmology, various scientists and researchers have disputed parts or all of the Big Bang due to a rejection or addition of fundamental assumptions needed to develop a theoretical model of the universe. From the 1940s to the 1960s, the astrophysical community was equally divided between supporters of the Big Bang theory and supporters of a rival steady state universe. It was not until advances in observational cosmology in the late 1960s that the Big Bang would eventually become the dominant theory, and today there are few active researchers who dispute it.The term non-standard is applied to any cosmological theory that does not conform to the scientific consensus, but is not used in describing alternative models where no consensus has been reached, and is also used to describe theories that accept a ""big bang"" occurred but differ as to the detailed physics of the origin and evolution of the universe. Because the term depends on the prevailing consensus, the meaning of the term changes over time. For example, hot dark matter would not have been considered non-standard in 1990, but would be in 2010. Conversely, a non-zero cosmological constant resulting in an accelerating universe would have been considered non-standard in 1990, but is part of the standard cosmology in 2010.