ScienceDaily: Galaxies News |
| Milky Way gas cloud causes multiple images of distant quasar Posted: 28 Aug 2013 02:31 PM PDT For the first time, astronomers have seen the image of a distant quasar split into multiple images by the effects of a cloud of ionized gas in our own Milky Way Galaxy. Such events were predicted as early as 1970, but the first evidence for one now has come from the National Science Foundation's Very Long Baseline Array (VLBA) radio telescope system. |
| Modified law of gravity predicts dwarf galaxy feature prior to observations Posted: 28 Aug 2013 07:34 AM PDT MOND, a modified law of gravity, correctly predicted in advance of observations the velocity dispersion -- the average speed of stars within a galaxy relative to each other -- in 10 dwarf satellite galaxies of the Milky Way's giant neighbor Andromeda. MOND also detected subtle differences in gravity fields that dark matter theory says should be uniform. |
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