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Most of the mass of any galaxy is expected to be "dark matter," the elusive X Factor that has yet to be detected but which astronomers believe must exist to provide sufficient gravity to prevent galaxies ripping themselves apart as they rotate. But ESA ...
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via Google Alerts
Most of the mass of any galaxy is expected to be "dark matter," the elusive X Factor that has yet to be detected but which astronomers believe must exist to provide sufficient gravity to prevent galaxies ripping themselves apart as they rotate. But ESA ...
See all stories on this topic »
via Google Alerts
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