Venus and

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Across
  1. 4. - First spacecraft to transmit data from Venus surface
  2. 6. - Series of Soviet Venus missions
  3. 7. - One reason surface missions to Venus fail
  4. 8. - NASA orbiter that mapped Venus' surface
  5. 9. - First image from Venus surface
  6. 11. - Makes up most of Venus’ atmosphere
  7. 12. - Highly deformed, mountain-like Venusian terrain
  8. 14. - NASA mission to analyze Venus' atmosphere
  9. 15. - Theory explaining Venus' extreme heat
  10. 16. - Theory that Venus once had water
  11. 17. - Key part of DAVINCI that will plunge into atmosphere
  12. 18. - First successful flyby of Venus (USA)
Down
  1. 1. - A challenging phase of Venus missions
  2. 2. - Orbiter mission to map Venus' geology
  3. 3. - Technique Magellan used to see through clouds
  4. 5. - Venus’ atmosphere spins faster than planet itself
  5. 6. - Instruments deployed into Venus' atmosphere
  6. 10. - Soviet mission using balloons in Venus' atmosphere
  7. 12. - Venus has this due to carbon dioxide
  8. 13. - Found in Venus' clouds