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blackholes 2009/01/16 11:34 blackholes 2009/11/06 13:53 current
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-====== Black Holes ====== +====== Black Holes and Cosmology ====== 
- + * [[Did stars form during 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?]]
  * [[How can X-rays escape the gravity of black holes?]]   * [[How can X-rays escape the gravity of black holes?]]
  * [[Do white holes exist and if they do can we see them?]]   * [[Do white holes exist and if they do can we see them?]]
 +  * [[How is it possible to look back and see the birth of the universe?]] 
 +  * [[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?]] 
 +  * [[If the Universe is expanding and galaxies are rushing away from one another, why are the galaxies in the Local Group not flying apart?]]
 
blackholes.1232134444.txt.gz · Last modified: 2009/01/16 11:34 by czars · [Old revisions]