* Nebulae: These are vast clouds of gas and dust in space. They can be incredibly large, spanning many light-years across. Some famous examples include the Orion Nebula and the Eagle Nebula.
* Neutron Stars: These are incredibly dense remnants of massive stars that have exploded as supernovas. They are typically only a few kilometers in diameter, about the size of a small city.
In summary: A nebula can be billions of times larger than a neutron star.