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  1. GJ 1002 c: A Habitable Exoplanet

    GJ 1002 c: A Habitable Exoplanet

    21
  2. HD 216520 c: A Habitable Exoplanet

    HD 216520 c: A Habitable Exoplanet

    8
  4. Carl Sagan explains how the ancient Greeks knew the earth was not flat

    Carl Sagan explains how the ancient Greeks knew the earth was not flat

    32
  5. KOI-7235.01: A Habitable Exoplanet

    KOI-7235.01: A Habitable Exoplanet

    14
    1
  6. Upsilon Andromedae b: A Living Hell

    Upsilon Andromedae b: A Living Hell

    2
    0
    8
  7. KOI-3010.01: A Habitable Exoplanet

    KOI-3010.01: A Habitable Exoplanet

    3
  8. KOI-4550.01: A Habitable Exoplanet

    KOI-4550.01: A Habitable Exoplanet

    3
  9. Gliese 667 Cf: A Habitable Exoplanet

    Gliese 667 Cf: A Habitable Exoplanet

    21
  10. Wolf 1061 b: A Habitable Exoplanet

    Wolf 1061 b: A Habitable Exoplanet

    13
  11. Gliese 3293 c: A Habitable Exoplanet

    Gliese 3293 c: A Habitable Exoplanet

    45
  13. Kepler-452b: A Habitable Exoplanet

    Kepler-452b: A Habitable Exoplanet

    18
  15. Is Quasar the Brightest thing in the Universe?

    Is Quasar the Brightest thing in the Universe?

    9
  17. Gliese 1132 b: A Dangerous Exoplanet

    Gliese 1132 b: A Dangerous Exoplanet

    20
  18. HD 189733 b: A Exoplanet Where Molten Glass Rain

    HD 189733 b: A Exoplanet Where Molten Glass Rain

    12