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  1. Coma (comet) - Wikipedia

  2. Coma | comet | Britannica

  3. Comet - Wikipedia

  4. Comet | Definition, Composition, & Facts | Britannica

  5. Comets: Facts - Science@NASA

  6. Why Comets Are Important - NASA Solar System Exploration

  7. Comets: Everything you need to know | Space

  8. ESA Science & Technology - Catching up with the comet's coma

  9. comet coma comet coma comet coma comet coma - University …

  10. What Is a Comet? | NASA Space Place – NASA Science for Kids