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Homework Help: Black hole

  1. Apr 5, 2009 #1
    Your twin sister builds a spaceship and flies to a black hole. She flies there at
    speeds much less than the speed of light. She flies close to (but not within) the
    event horizon of the black hole, and stays there for a while making scientific
    discoveries. When she returns one year later, will she be older, younger, or the
    same age as you? What is the reason for your answer?
  2. jcsd
  3. Apr 5, 2009 #2


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    Staff: Mentor

    Please show what you have tried. We won't do your homework for you.
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