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-48%
A Year of the Stars: A Month-by-Month Journey of Skywatching
0Original price was: $33.00.$17.00Current price is: $17.00.A Year of the Stars: A Month-by-Month Journey of Skywatching, Andreas Keiling, 9781591020929
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-69%
Carl Sagan: A Biography
0Original price was: $49.00.$15.00Current price is: $15.00.Carl Sagan: A Biography, Lodders, Katharina, 9781591026587
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-86%
Comet Madness: How the 1910 Return of Halley’s Comet (Almost) Destroyed Civilization
0Original price was: $86.00.$12.00Current price is: $12.00.Comet Madness: How the 1910 Return of Halley’s Comet (Almost) Destroyed Civilization, Alexander J. Dessler, 9781633888562
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-94%
Dark Sky Legacy: Astronomy’s Impact on the History of Culture
0Original price was: $120.00.$7.00Current price is: $7.00.Dark Sky Legacy: Astronomy’s Impact on the History of Culture, American Federation of Astrologers, 9780879755416
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-75%
Deep Sky Objects: The Best and Brightest from Four Decades of Comet Chasing
0Original price was: $51.00.$13.00Current price is: $13.00.Deep Sky Objects: The Best and Brightest from Four Decades of Comet Chasing, Stephen Hawking, 9781591023616
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-66%
Destination Mars: New Explorations of the Red Planet
0Original price was: $38.00.$13.00Current price is: $13.00.Destination Mars: New Explorations of the Red Planet, Chris, 9781616145897
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-91%
Doomsday Asteroid: Can We Survive?
0Original price was: $93.00.$8.00Current price is: $8.00.Doomsday Asteroid: Can We Survive?, Shadia Rifai Habbal, 9781573922715
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-58%
Edmond Halley: The Many Discoveries of the Most Curious Astronomer Royal
0Original price was: $31.00.$13.00Current price is: $13.00.Edmond Halley: The Many Discoveries of the Most Curious Astronomer Royal, AnnaMarie Salai, 9781633888913
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-83%
Invisible Walls: Why We Ignore the Damage We Inflict on the Planet–And Ourselves
0Original price was: $87.00.$15.00Current price is: $15.00.Invisible Walls: Why We Ignore the Damage We Inflict on the Planet–And Ourselves, Shadia Rifai Habbal, 9781573922173
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-91%
Kepler and the Universe: How One Man Revolutionized Astronomy
0Original price was: $88.00.$8.00Current price is: $8.00.Kepler and the Universe: How One Man Revolutionized Astronomy, Siegel, Ethan, 9781633889477
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-85%
On Solid Ground: Why the Earth Isnt as Controversial as You May Think
0Original price was: $114.00.$17.00Current price is: $17.00.On Solid Ground: Why the Earth Isnt as Controversial as You May Think, Karina Linwood, 9781633888302
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-85%
On the Revolutions of Heavenly Spheres
0Original price was: $73.00.$11.00Current price is: $11.00.On the Revolutions of Heavenly Spheres, David A Hardy, 9781573920353
