The Collapsing Universe
Black holes (Astronomy)
Gravity
Observers' manuals
Non-Classifiable
Cosmology
Earth sciences
Measurement
Astronomy
Science
Juvenile literature
In a time of spectacular developments in the new astronomy, the concept of black holes captures top honors. As scientific evidence for them mounts, black holes loom as an ominous development in the life, measured in billions of years, of the universe.
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