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Dark matter


Dark matter is an unidentified type of matter comprising approximately 27% of the mass and ... All these lines of evidence suggest that galaxies, clusters of galaxies , and ..... seemed to indicate a...

What evidence suggests that the Milky Way contains dark matter ...


Nov 19, 2012 ... 11) What evidence suggests that the Milky Way contains dark matter? ... 12) IF there is no dark matter in the Milky Way Galaxy, what is the best ...

Milky Way's Dark Matter Halo - SolStation.com


This map provides the best evidence to date that normal matter, largely in the form of ... 1689, which contains around 1,000 galaxies ... The Milky Way's dark halo is believed to outweigh the galaxy's normal matter by around a factor of 20. ... Clouds through space suggest that the Milky Way's combined dark and visible mass...

Astronomy FINAL Exam Flashcards


Apr 30, 2013 ... About how many stars are there in the disk of our Milky Way galaxy? ..... What evidence suggests that most of the mass of the Milky Way is in the form of dark matter? ..... Suppose that spiral galaxies did not contain dark matter.

Components of the Galaxy - Utk


In addition to these visible components, the galaxy also contains at least ... magnetic field, and a halo of "dark matter" that is of unknown composition but ... Most of the gas and dust of the Milky Way is contained in the disk. ... it at other wavelengths and there is some evidence that violent processes may be taking place...

Exam 3 Spring 2000 Practice Test 1 - Physics


C) Theoretical models of galaxy formation suggest that a galaxy cannot form unless it .... 38) What evidence suggests that the Milky Way contains dark matter?

Dark Matter - Crystalinks


All these lines of evidence suggest that galaxies, clusters of galaxies, and the universe as a whole contain far more matter than that which interacts with ... Physicists suggest a new way to look for dark matter: They believe that dark .... Fermi data tantalize with new clues to dark matter: Gamma rays from center of Milky Way .....

Dark matter - New World Encyclopedia


Jul 26, 2013 ... All these lines of evidence suggest that galaxies, clusters of galaxies, .... Globular clusters show no evidence that they contain dark matter, though ... 20 fold increase in mass of the Milky Way taking into account dark matter.

Dark Matter, Dark Energy, and the Accelerating Universe ...


Recall that in the Milky Way, we find that the outer parts of the Galaxy are rotating ... Way, it appears that the Galaxy contains more dark matter than luminous matter. Beyond individual galaxies, though, there is also evidence for dark matter in ... In many clusters, the velocities of the galaxies in that cluster suggest that the  ...

Dark Matter, Dark Energy, and the Fate of the Universe - Pearson


that studies of the Milky Way's rotation suggest that most of our galaxy's mass is ... Several distinct lines of evidence point to the existence of dark matter, including .... galaxies, like spirals, contain 10 times or more as much mass in dark mat-.

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PS 224, Fall 2014 HW 4


Current evidence suggests that there could be 100 billion or more planets in ... The Sun's velocity around the Milky Way tells us that most of our galaxy's dark matter ... Spiral arms are bright because they contain many short-lived blue stars that ...

Rio Salado AST101 Flashcards


Nov 24, 2015 ... Stars in the outskirts of the Milky Way orbit the galaxy at much higher .... What evidence suggests that the Milky Way contains dark matter?

How Do We Know Dark Matter Exists? - Universe Today


Dark matter can't be seen or detected by any of our instruments, so how do we know it really ... But there was no way to actually detect this stuff, so astronomers proposed other models. ..... The “Darks” have lots of evidence supporting their existence. .... These results suggest that either Newtonian gravity does not apply  ....