In space, we’re used to dealing with large distances and objects. In the cosmic scheme of things, Earth is rather small. Even in our solar system, we are easily dwarfed by the planet Jupiter (more than 1,000 Earths would fit in the planet, according to NASA) and our sun (more than a million Earths would fit in there, according to Cornell University).
Even our sun looks puny when it is compared to the biggest stars we know of. The sun is a G-type star, a yellow dwarf — pretty average-size on the cosmic scale. But some “hypergiant” stars are much, much larger. Perhaps the biggest star known is UY Scuti, which could fit more than 1,700 of our suns. It is only about 30 times more massive, however, so that shows that mass and size don’t necessarily correlate in space.