Bosemon Spiel

5
Average: 5 (1 vote)
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Colours in astronomical imaging

5
Average: 5 (1 vote)
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Why is it hotter in summer and colder in winter?

0
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The Sun also has spots!

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Solar system measurements

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Eclipsing binary stars

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Shapes of Galaxies

5
Average: 5 (2 votes)

Sun's movement

3.666665
Average: 3.7 (3 votes)
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S/n remnants expansion

0
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Sea level during a day with a full Moon

0
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