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Globular Clusters Give Astronomers Cluster Headaches

The old story is out, and nobody knows what the new story should be.

Early Massive Galaxies Will Require Theory Overhaul (Again)

Big bang theory didn't expect massive galaxies so early, but they've known about this problem for over a decade.

Galaxy Evolution Problem: A Case Study in Criticizing Paradigms

"When you have a clear contradiction like this, you ought to focus on it," say scientists who found problems with the leading theory of galaxy evolution.
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