September

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Across
  1. 3. 1976 | first evidence of this found on Mars' surface
  2. 4. 7 | 2025 | Two words; When the moon passes though the Earth's shadow
  3. 7. 14 | 2015 | Mission LIGO-___ observed gravitational waves for the first time
  4. 8. 13 | 1959 | The Luna 2 became the first spacecraft to ___ another celestial body
  5. 9. 13 | 1992 | The first spacecraft to fully map Venus
  6. 10. 26 | 2022 | First spacecraft to measurable deflect an asteroid
  7. 11. 23 | 1846 | Planet observed for the first time by Gale and Le Verrier
Down
  1. 1. 7 | 2025 | The name of this month's full moon
  2. 2. 1968 | The first lunar spacecraft to be successfully ___
  3. 5. 11 | 1985 | ISEE-3/ICE became the first spacecraft to flyby this type of celesial body
  4. 6. 1 | 1979 | Pioneer 11 made the first flyby of this planet