ScienceDaily: Dark Matter News |
| Universe's early galaxies grew massive through collisions Posted: 29 Jan 2014 08:49 AM PST It has long puzzled scientists that there were enormously massive galaxies that were already old and no longer forming new stars in the very early universe, approximately 3 billion years after the Big Bang. Now new research shows that these massive galaxies were formed by explosive star formation that was set in motion by the collision of galaxies a few billion years after the Big Bang. |
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