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Gravity lensing lets us map the distribution of both visible and dark matter.
Q21: Where did the Big Bang occur?
Q30: Relate the inflationary theory to the GUTs.
Q37: At the end of the first fifteen
Q47: Because of their mass, the threshold temperature
Q58: What temperature has the Big Bang cooled
Q65: Galactic disks appear blue because:<br>A)they contain no
Q78: Why is the hypothesis that life on
Q80: While yet unproven, the proposed WIMPS would
Q104: What type of galaxy are the two
Q129: The key to identifying a black hole