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Earth seems to us like a pretty big place. Well, Jupiter has 317 times more mass than Earth! Saturn is 95 times as massive as Earth. But even with those giants hogging all that mass, the Sun contains 99.86% of the mass of the entire solar system!
It's a wonder there's any matter at all left over for us!
The picture below gives a better idea of how the sizes of the Sun and the planets* compare with each other. If Earth were about 2 millimeters across, as it is in this picture, the Sun would be almost 218 millimeters (about 8-1/2 inches) across!
The picture below shows how the sizes of the moons of the different planets* compare with each other and with the size of Earth.
* On August 17, 2006, the International Astronomical Union redefined "planet," calling Pluto a "dwarf planet." However, not all astronomers agreed, so the definition of a planet is not settled yet.
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