1. The Sun is a ball of fire: While the Sun is incredibly hot, it doesn't burn in the traditional sense. It generates energy through nuclear fusion, where hydrogen atoms fuse together to form helium, releasing immense amounts of energy.

2. The Sun is solid: The Sun is actually a giant ball of plasma, a superheated gas composed of charged particles. It has no solid surface.

3. The Sun is yellow: The Sun actually emits all colors of the rainbow, but appears yellow from Earth because the atmosphere scatters away shorter wavelengths of light, such as blue and violet.

4. The Sun is the center of the universe: This was once a common belief, but we now know that the Sun is just one star among billions in the Milky Way galaxy, which itself is one of countless galaxies in the universe.

5. The Sun is a constant source of energy: The Sun's energy output is not entirely constant. It experiences cycles of activity, with periods of higher and lower solar flares and sunspots.

6. The Sun is a perfect sphere: The Sun's rotation causes it to bulge slightly at the equator, making it an oblate spheroid, not a perfect sphere.

7. The Sun is close to Earth: The Sun is 93 million miles away from Earth, and its immense size makes it appear much larger and closer than it actually is.

8. The Sun is a giant star: While the Sun is massive, it's classified as a yellow dwarf star, which are considered average-sized stars.

9. We can touch the Sun's surface: It's impossible to touch the Sun's surface due to its extreme heat and radiation.

10. The Sun is the only source of light in our solar system: While the Sun is the primary source of light, planets and moons also reflect sunlight, making them visible in the night sky.