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Age of the Universe

5
Average: 5 (1 vote)
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Types of stars using NSO spectra

0
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Why is it hotter in summer and colder in winter?

0
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Freezing cells in liquid nitrogen: cryopreservation

0
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Earth-like exoplanets

0
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this is a test - please ignore

0
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Planetary Calculator

3.666665
Average: 3.7 (3 votes)
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Creating Constellations

5
Average: 5 (2 votes)
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Constellations Model

4.333335
Average: 4.3 (3 votes)
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Calculadora planetária

5
Average: 5 (3 votes)
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