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Q3: A spectrum that displays no energy except
Q6: Helioseismology maps of rotation in the Sun's
Q10: Day and night cycles are caused by
Q12: The celestial object _ is just one
Q13: A spectrum that displays a smooth variation
Q20: What was the purpose of the LCROSS
Q31: What are the shared common characteristics of
Q61: Granulation is caused by convection currents just
Q68: In the inner solar nebula, only metals
Q70: Why do sunspots occur darker than the