The Collapsing Universe

The Collapsing Universe: The Story of Black Holes is a non-fiction book by Isaac Asimov. It was first published by Walker in 1977. 
==Gallery==
a collapsing b.jpg
a collapsing r.jpg
a collapsing p.jpg
a collapsing q.jpg
==See Also==
List of Books by Isaac Asimov
Category:Non-Fiction
Category:Books