Galaxies and Nebulae

What’s inside

• Which type of galaxy is the Milky Way classified as?
• What is the main difference between an emission nebula and a reflection nebula?
• Which observation provides strong evidence that many galaxies contain large amounts of dark matter?
• What is the primary source of the distinctive red glow in many emission nebulae?
• Match each galaxy with its most characteristic description.
• Match each nebula with its best-known classification or feature.
• Match each galaxy type with its typical structure or stellar population.
• Match each observation method with what it reveals about galaxies or nebulae.