Why do astronomers often use scientific notation?

Astronomers often use scientific notation to express very large or very small numbers conveniently, as the vastness of space involves distances and sizes that can be impractically large or small in standard decimal form. For example, distances between stars can be measured in light-years, which can exceed trillions of kilometers. Scientific notation simplifies calculations and comparisons, making it easier to communicate complex data effectively. Additionally, it reduces the likelihood of errors in computation and enhances clarity in presentations and publications.