• How many moons has Saturn?
  Saturn has at least 18 moons, including lapetus, which is black on ...

• Why are astronomers excited about Titan?
  Saturn's moon Titan is very special because it is the only moon in ...

• What is a solar eclipse?
  A solar eclipse is when the Moon comes in between the Sun and the ...

• How big is the Sun?
  The Sun is a small to medium-sized star 0.86 million miles (1,392,000 ...

• What is the Sun’s crown?
  The Sun's crown is its corona, its glowing white hot atmosphere seen ...

• How hot is the Sun?
  The surface of the Sun is a phenomenal 11,000°F (6,000°C), and would ...

• What makes the Sun burn?
  The Sun gets its heat from nuclear fusion. Huge pressures deep inside ...

• How old is the Sun?
  The sun is a middle-aged star and probably formed about five billion ...

• What’s inside the Moon?
  The Moon's mantle is now very cool compared to the Earth's. The ...

• Why does the moon look like cheese?
  The moon looks like cheese because it is full of holes, and sometimes ...