Changes

|isbn=9-789-02-4936-5

|isbn=9-789-02-4936-5

|quote=Remark on Dark Matter: As is well known much of the support for the existence of the dark matter is due to the observed very high velocities of gas molecules or galaxies.  For example galaxies in the far-off Coma-cluster are observed whirling around one another faster than the laws of physics would allow. So is the mysteriously rapid rotation of spiral galaxies. Equation (2.25) clearly shows that the observed velocity by us is not the velocity measured by a local observer at a relative time <math>t</math> with respect to us. He measures a smaller velocity, and the more back in time the more the velocity decreases. Does this mean that the hypothetical dark matter can be abolished as the "luminiferous ether" was proved to be superfluous by special relativity?       

|quote=Remark on Dark Matter: As is well known much of the support for the existence of the dark matter is due to the observed very high velocities of gas molecules or galaxies.  For example galaxies in the far-off Coma-cluster are observed whirling around one another faster than the laws of physics would allow. So is the mysteriously rapid rotation of spiral galaxies. Equation (2.25) clearly shows that the observed velocity by us is not the velocity measured by a local observer at a relative time <math>t</math> with respect to us. He measures a smaller velocity, and the more back in time the more the velocity decreases. Does this mean that the hypothetical dark matter can be abolished as the "luminiferous ether" was proved to be superfluous by special relativity?       

}}</ref> that [[atheist]]ic [[astronomer]]s infer when the actual mass of an observed celestial object is insufficient to account for an ostensible [[gravitation]]al effect.{{#tag:ref|cf. "...much of the support for the existence of the dark matter is due to the observed very high velocities of gas molecules or galaxies. For example galaxies in the far-off Coma-cluster are observed whirling around one another faster than the laws of physics would allow. So is the mysteriously rapid rotation of spiral galaxies."<ref name="CSR"/>|group=note}} It is one of two concepts (the other is [[dark energy]]) that [[evolution]]istic astronomers invoke to account for observations that old-[[universe]] cosmologies, including the [[Big Bang]], cannot explain. The term was introduced by Swiss astronomer Fritz Zwicky who hypothesized that it must be the gravity of unseen ''dark matter'' that holds fast-moving galaxies together in [[Galaxy cluster|cluster]]s.<ref>{{Cite web  

}}</ref> that [[atheist]]ic [[astronomer]]s infer when the actual mass of an observed celestial object is insufficient to account for an ostensible [[gravitation]]al effect.{{#tag:ref|cf. "...much of the support for the existence of the dark matter is due to the observed very high velocities of gas molecules or galaxies. For example galaxies in the far-off Coma-cluster are observed whirling around one another faster than the laws of physics would allow. So is the mysteriously rapid rotation of spiral galaxies."<ref name="CSR"/>|group=note}} It is one of two concepts (the other is [[dark energy]]) that [[evolution]]istic astronomers invoke to account for observations that old-[[universe]] cosmologies, including the [[Big Bang]], cannot explain. The term "dark matter" was introduced by the [[Swiss]] [[American]] astronomer Fritz Zwicky in 1933 of [[Caltech]], who hypothesized that it must be the gravity of unseen ''dark matter'' that holds fast-moving galaxies together in [[Galaxy cluster|cluster]]s.<ref>{{Cite web  

|author=F. Zwicky  

|author=F. Zwicky  

|title = Die Rotverschiebung von extragalaktischen Nebeln  

|title = Die Rotverschiebung von extragalaktischen Nebeln