Answers created by Sarah.

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• How does electromagnetic radiation affect our lives?
  
• What holds galaxies together?
  
• What is a hot spring and what do they suggest about the local volcanic system?
  
• How will the private sector enable new advances in space exploration?
  
• What did people want before they would accept the Constitution?
  
• How was Mercury formed?
  
• What political party did most African American politicians belong to immediately after the Civil War?
  
• Why did the Continental Congress draw up the Articles of Confederation?
  
• How are seismic waves measured?
  
• What is meant by electromagnetic radiation?
  
• How long does it take for a typical star that has no more hydrogen to become a red giant?
  
• If the universe is flat, why do we have dimensions on earth?
  
• What happens to a star much bigger than the Sun, once the star reaches the end of the main sequence' period of its life cycle?
  
• How do you find the derivative of #sin^-1(2x+1)#?
  
• Is it possible to send a camera into a black hole?
  
• How does the initial mass of a star affect its final outcome?
  
• Which electron is, on average, further from the nucleus: an electron in a 3p orbital or an electron in a 4p orbital?
  
• Question #a27c0
  
• What are white dwarf stars and how do they form?
  
• What causes a supernova?
  
• Why are giant and supergiant stars rare?
  
• What can a star become from a red giant, and then what after that?
  
• What does iron do in the stars and sun?
  
• What countries have put people on the moon?
  
• How do you solve #\frac{w}{2} = \frac{4.5}{6.8}#?
  
• How do massive stars end their life cycle?
  
• What determines the path a supernova takes, either as a neutron star or a black hole?
  
• How is a nebula related to star formation?
  
• Do all stars and planets rotate? Are there any that have been discovered that do not rotate?
  
• Is our universe expanding? Or does it only seem bigger because our ability to look further into the universe has grown?
  
• How did the earth come into being?
  
• What does the sky look like by a black hole?
  
• Question #83c38
  
• How does gravity affect the expansion of the universe?