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1 | | How big is the Sun compared to the Earth? |
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2 | | How can we measure the Sun’s size, mass, and temperature? |
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3 | | What is the Sun made of? How do we know this? |
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4 | | What holds the Sun together? |
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5 | | Why doesn’t the Sun collapse? |
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6 | | Why must the interior of the Sun be so hot? |
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7 | | How is solar energy generated? |
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8 | | How does energy get to the Sun’s surface from its core? |
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9 | | What visible evidence do we have that the Sun has a convection zone? |
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10 | | What are the photosphere, chromosphere, and corona? |
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11 | | Which of these layers is hottest? How do we know this? |
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12 | | What is meant by solar activity? |
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13 | | Why do sunspots appear dark? |
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14 | | How do a prominence and a flare differ? |
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15 | | What role does magnetic activity play in solar activity? |
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16 | | How do we know there are magnetic fields in the Sun? |
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17 | | What is meant by solar neutrinos? Why do astronomers say there is a discrepancy? Why is the discrepancy of interest? |
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18 | | What is solar seismology? What does it tell us about the Sun? |
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19 | | What is the solar cycle? |
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20 | | What is the period between maximum sunspot numbers? How does this differ from the period of the full solar cycle? |
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21 | | What is the Maunder minimum? Why is it of interest? |
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