SPACE

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Across
  1. 2. Only planet named for a Greek god
  2. 5. First real image of this was captured in early 2019
  3. 7. Program to land a man on the moon, named after this Greek god
  4. 9. Space station’s name means “peace” or “world” in its operating country’s language
  5. 12. Massive asteroid belt on the outskirts of the Solar System
  6. 13. Accounts for 85% of the universe’s matter but has never been directly observed
Down
  1. 1. First man in space
  2. 3. Largest Martian mountain
  3. 4. King of the Roman Gods
  4. 6. Of Jupiter’s four Galilean moons, the only one with little to no water or ice
  5. 8. First dog in space
  6. 10. Massive explosion of dying star
  7. 11. First man on the moon