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1. Why is it hard for scientists to study Pluto? (See answer)
2. Why do you think scientists planned the May 2005 Hubble observation? (See answer)
3. Why do you think scientists planned the February 2006 Hubble observation? (See answer)
4. Why do you think it will take such a long time for the New Horizons spacecraft to reach Pluto and the Kuiper Belt? (See answer)
5. How has the Hubble Space Telescope contributed to our understanding of Pluto? (See answer)
6. Scientists have found other objects in the Kuiper Belt. Many of them have a moon. Do you think these objects may have more than one moon?
   (See answer)