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Question 3:
Why do you think scientists planned the February 2006 Hubble observation?

Scientists planned this observation to try to confirm their May 2005 discovery of two previously unobserved objects near Pluto. They thought the two objects might be two additional moons of Pluto. When a moon is “confirmed,” astronomers have validated that the object is in orbit around a larger body and the astronomical community accepts that it is a moon.

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