Nebulae Composition

Topic Page

Questions

• What percent of stars become planetary nebulas?
• How is a planetary nebula formed?
• How are planetary nebulae detected?
• How did planetary nebulae get their name?
• How do planetary nebulae differ from one another?
• How does gas for a nebulae constantly keep getting replenished?
• What are three examples of how the nebular theory explains some observed features of the present-day solar system?