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Searching for other universes

August 5, 2011

The long-term trend in cosmology is the continual expansion of what we think there might be. A new paper looks at the cosmic background radiation as a test of the theory that our universe is but one bubble of space-time among many others. Admittedly, a small test of what is still a quite speculative theory. A test, nonetheless. It seems appropriate to pair that with this cartoon of how science works.

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