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Startling Nasa animation puts black holes in perspective [View all]
These mysterious black holes lurk in the centres of most big galaxies, but it is hard to grasp their sheer size.
Published
4 days ago
Animation at link:
https://www.bbc.com/news/av/world-us-canada-65501275
2 replies
= new reply since forum marked as read
= new reply since forum marked as read