![](http://scienceblog.com/files/2011/04/lores1-100x100.jpg)
A galaxy’s core is a busy place, crowded with stars swarming around an enormous black hole. When galaxies collide, it gets even messier as the two black holes spiral toward ...
![](http://scienceblog.com/files/2011/04/fossil1-100x100.jpg)
![](http://scienceblog.com/files/2011/04/fossil1-100x100.jpg)
By studying fossilized mollusks from some 3.5 million years ago, UCLA geoscientists and colleagues have been able to construct an ancient climate record that holds clues about the long-term effects of Earth’s ...
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