Space

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Across
  1. 2. a space vehicle or missile, or the special engine that's meant to propel such a vehicle into the air
  2. 3. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun
  3. 7. a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter.
  4. 10. small, rocky objects that orbit the Sun
  5. 11. A celestial body moving in an elliptical orbit around a star.
Down
  1. 1. a regular, repeating path that one object takes around another object or center of gravity
  2. 4. objects in space that range in size from dust grains to small asteroids
  3. 5. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
  4. 6. the star around which the earth orbits.
  5. 8. a region of space having a gravitational field so intense that no matter or radiation can escape.
  6. 9. the natural satellite of the earth, visible (chiefly at night) by reflected light from the sun.