Carl Sagan

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Across
  1. 1. Carl Sagan is famous for his discoveries of this planet's surface temperature and it's relation to Global Warming
  2. 5. Carl Sagan attended the University of _______ at only 16 years of age
  3. 7. Space probes with golden records on them containing images, sounds, music, and other proof of human existence.
  4. 8. The __________ effect was discovered by Carl Sagan to be happening on Venus and poses a serious threat to Earth.
Down
  1. 2. Microorganisms may be living in Venus' atmosphere because of ___________ light
  2. 3. Carl Sagan won an astonishing _________ awards for his contributions (contains a hyphen)
  3. 4. Carl Sagan was born in this borough
  4. 5. Movie we watched in class based on one of his books
  5. 6. Book and PBS series written by Carl Sagan