91 | The Observers Notebook- The New Exoplanets Section of the ALPO 2020-12-15 |
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92 | The Observers Notebook- The Geminids Meteor Shower 2020 2020-12-03 |
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93 | The Observers Notebook- Comets with Carl 2020-11-20 |
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94 | The Observers Notebook- Carl Hergenrother LIVE from the 2020 ALPO Conference 2020-11-01 |
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95 | The Observers Notebook- The Orionids Meteor Shower 2020 2020-10-15 |
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96 | The Observers Notebook- Mars 2020 2020-10-01 |
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97 | The Observers Notebook- The 2020 ALPO Virtual Conference 2020-09-10 |
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98 | The Observers Notebook- Venus 2020 2020-09-01 |
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99 | The Observers Notebook- A Conversation with David Levy 2020-08-15 |
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100 | The Observers Notebook- Meteor Showers with Bob Lunsford 2020-07-28 |
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