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Originally Posted by dipayankar How much do we know of Dark Matter? Does dark matter have the limitations of ordinary matter regarding speed? Can Ordinary matter be converted into dark matter? I recently read that now 'black holes' are probably not what we think but rather stars who have turned into 'dark energy stars'. How is it possible under the laws of physics??? Or are we missing something that will allow us to travel at the speed of light? |
the dark matter theory is a theory created in the 20th century. It is non-baryonic matter in the sense that it does not interact with photons. It is theorized to be proportionately 90% of the total matter of the universe not including antimatter (anyway, nobody knows where antimatter is). Dark matter can only be detected by its gravity such as gravity lensing, Doppler shifts from opposite sides of rotating galaxies, the detected existence of the Great Attractor affecting the motions of many galaxies. It is needed to close the expansion of the universe. Its nature still is a mystery.
Incidentally, all our de Broglie matter waves do travel faster than the speed of light. But matter waves do not carry energy, hence it also cannot be detected. The more mass a person has the higher is this person's matter wave velocity but the increase in mass reduces the particle or physical velocity of the person. This is where when the wave nature and the particle nature are separated completely, the particle velocity is zero and the wave velocity is infinite.