Space Crossword

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Across
  1. 1. Dense clusters of gas where stars are born
  2. 5. The path that a stellar mass takes around its parent mass
  3. 7. One of billions of clusters of stars and planets held together by gravity
  4. 8. A planet with a high likelihood of inhabiting life
  5. 10. A fundamental force that acts on everything with mass
Down
  1. 2. Describes the expanding space in which all matter resides
  2. 3. An incredibly small particle that is found in everything in the universe
  3. 4. Resides in the center of a black hole
  4. 6. A large, spherical mass with a molten core and an atmosphere
  5. 9. A ball of gas and plasma that emits heat and light