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| blackholes 2009/02/02 09:50 | blackholes 2009/11/06 13:53 current | ||
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| ====== Black Holes and Cosmology ====== | ====== Black Holes and Cosmology ====== | ||
| + | * [[Did stars form during the Big Bang?]] | ||
| * [[Did space exist before the Big Bang?]] | * [[Did space exist before the Big Bang?]] | ||
| * [[If the observable universe is analogous to a hollow plastic ball, then how thick is the plastic?]] | * [[If the observable universe is analogous to a hollow plastic ball, then how thick is the plastic?]] | ||
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| * [[How can astronomers say that the universe is expanding without knowing where the boundaries of the universe are?]] | * [[How can astronomers say that the universe is expanding without knowing where the boundaries of the universe are?]] | ||
| * [[How do we know that the Universe is accelerating?]] | * [[How do we know that the Universe is accelerating?]] | ||
| + | * [[If the Universe is expanding and galaxies are rushing away from one another, why are the galaxies in the Local Group not flying apart?]] | ||