Value of Space Travel

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Across
  1. 2. ________ launched the first satellite into space
  2. 5. First man on the Moon
  3. 7. First Mars Rover
  4. 9. When a star dies it can turn into a _____ ______
  5. 10. Researchers have found ___ on Mars
  6. 11. "That's one small step for man, one giant leap for _______"
  7. 12. In 2006 ____ was classified as a dwarf planet
  8. 13. Mars Rover launched in 2012 was ________
  9. 15. _____ ___ looks like spilled milk
Down
  1. 1. Apollo __ was one of the unsuccessful missions to the Moon
  2. 3. There are 100 billion - 200 billion ______ in the universe
  3. 4. The first man sent to space was ____
  4. 6. The ________ ______ is in between the orbit of Mars and Jupiter
  5. 7. The ___ is one of 100 billion stars in our galaxy
  6. 8. _______ has the most moons
  7. 14. First satellite launched