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Philosophy of cosmology
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Lensing helps see in the dark
Earlier this year, a group of scientists at Bell Labs announced that they had succeeded in observing the effects of "dark matter" - invisible matter that can be detected only by its gravitational effects.
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In space, do all roads lead to home?
Is the Universe finite, with an edge, or infinite, with no edges? Or is it even stranger: finite but with no edges? It sounds far-fetched but the mathematical theory of topology makes it possible, and nobody yet knows the truth. Janna Levin tells us more.
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Cosmos launch
COSMOS, the world's first national cosmology supercomputer, has been launched.