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  1. We Asked a NASA Expert: What's the Difference Between Asteroids, Comets, and Meteors?

    We Asked a NASA Expert: What's the Difference Between Asteroids, Comets, and Meteors?

    38
  3. NSYNC’s Lance Bass Shows How to Safely View an Annular Solar Eclipse

    NSYNC’s Lance Bass Shows How to Safely View an Annular Solar Eclipse

    14
  4. What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert

    What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert

    14
  5. Are There Rivers and Lakes on Other Worlds? We Asked a NASA Scientist

    Are There Rivers and Lakes on Other Worlds? We Asked a NASA Scientist

    8
  6. Where Does Space Begin? We Asked a NASA Expert

    Where Does Space Begin? We Asked a NASA Expert

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    5
  7. Why is Venus So Hot? We Asked a NASA Scientist

    Why is Venus So Hot? We Asked a NASA Scientist

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    119
  8. Is Climate Change the Same as Global Warming? – We Asked a NASA Expert

    Is Climate Change the Same as Global Warming? – We Asked a NASA Expert

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    67
  9. How Did Life Begin on Earth? We Asked a NASA Expert

    How Did Life Begin on Earth? We Asked a NASA Expert

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  10. Is Climate Change the Same as Global Warming? - We Asked a NASA Expert

    Is Climate Change the Same as Global Warming? - We Asked a NASA Expert

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    4
  11. How Do We Know What Earth's Climate Was Like Long Ago? We Asked a NASA Scientist

    How Do We Know What Earth's Climate Was Like Long Ago? We Asked a NASA Scientist

    10
  12. What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert

    What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert

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    11
  16. Is There Life on Mars? We Asked a NASA Scientist

    Is There Life on Mars? We Asked a NASA Scientist

    10
  17. What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert

    What's Going on with the Hole in the Ozone Layer? We Asked a NASA Expert

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    73
  18. Anthony Mackie Asks NASA About Ocean Science

    Anthony Mackie Asks NASA About Ocean Science

    5
  19. Anthony Mackie Asks NASA About Ocean Science

    Anthony Mackie Asks NASA About Ocean Science

    40
  20. Why is Venus So Hot? We Asked a NASA Scientist

    Why is Venus So Hot? We Asked a NASA Scientist

    6
  21. Where Did Our Moon Come From? We Asked a NASA Scientist

    Where Did Our Moon Come From? We Asked a NASA Scientist

    15
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