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1. Why do spiral galaxies stay that way? or do they?

... the same velocity, regardless of how far out from the hub they are. Their speeds do not drop off with increasing distance, as the velocities of the planets do in the solar system. This observation is anomalous itself, because it seems that the laws of orbital motion have been violated. We will save this anomaly for another day, the one we are after now is called: The Winding Dilemma. N. Comins and L. Marschall elaborate as follows: "Stars closer to the center of a spiral galaxy don't have as far to go to complete an orbit as stars located farther from the center. Thus, inner stars should orbit more frequently than outer stars, resulting in a spiral that gradually winds up as the galaxy ages. But observations of spiral galaxies at ... Science Frontiers ONLINE No. 55: Jan-Feb 1988 Issue Contents Other pages Home Page Science Frontiers Online All Issues This Issue Sourcebook Project Sourcebook Subjects Why do spiral galaxies stay that way? or do they?Sometimes the simplest of observations produces the stickiest of dilemmas. Take, for instance, a well-formed spiral galaxy, of which there are a great many. When astronomers measure the circumferential velocities of the stars, as they circle around the galaxy's hub, they find that all the stars orbit at about the same velocity, regardless of how far out from the hub they are. Their speeds do not drop off with increasing distance, as the velocities of the planets do in the solar system. This observation is anomalous itself, because it seems that the laws ...

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	Science Frontiers The Unusual & Unexplained Strange Science * Bizarre Biophysics * Anomalous astronomy From the pages of the World's Scientific Journals Archaeology Astronomy Biology Geology Geophysics Mathematics Psychology Physics

	About Science Frontiers Science Frontiers is the bimonthly newsletter providing digests of reports that describe scientific anomalies; that is, those observations and facts that challenge prevailing scientific paradigms. Over 2000 Science Frontiers digests have been published since 1976. These 2,000+ digests represent only the tip of the proverbial iceberg. The Sourcebook Project, which publishes Science Frontiers, also publishes the Catalog of Anomalies, which delves far more deeply into anomalistics and now extends to sixteen volumes, and covers dozens of disciplines. Over 14,000 volumes of science journals, including all issues of Nature and Science have been examined for reports on anomalies. In this context, the newsletter Science Frontiers is the appetizer and the Catalog of Anomalies is the main course. Subscriptions Subscriptions to the Science Frontiers newsletter are no longer available. Compilations of back issues can be found in Science Frontiers: The Book, and original and more detailed reports in the The Sourcebook Project series of books. The publisher Please note that the publisher has now closed, and can not be contacted.

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