Space

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Across
  1. 1. the fourth planet from the Sun and the second-smallest planet in the Solar System, being larger than only Mercury
  2. 3. occurs when a portion of the Earth is engulfed in a shadow cast by the Moon which fully or partially blocks sunlight.
  3. 6. rocky worlds revolving around the sun that are too small to be called planets
  4. 7. the largest moon of Saturn and the second-largest natural satellite in the Solar System
Down
  1. 2. powerful and luminous stellar explosion
  2. 4. a primordial earth goddess in Greek myth
  3. 5. an enormous cloud of dust and gas occupying the space between stars and acting as a nursery for new stars