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Question 2:
If you wanted to learn more about planetary nebulas, what questions would you ask?

Student answers will vary. Some students might ask questions similar to these:

  • Are all planetary nebulas made by two stars, as in the Necklace Nebula?
  • Can scientists study the shape of these nebulas and determine whether one or two stars made each one?
  • Are the stars that make planetary nebulas all close to the mass of the Sun?
  • What is the largest-mass star that can form a planetary nebula?
  • What is the smallest-mass star that can form a planetary nebula?

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