* Vast Scale: The Milky Way is incredibly large. Its diameter is measured in light-years, which is the distance light travels in a year.
* Difficult to Measure: We can't physically measure across the galaxy. We estimate its size based on observations of stars and gas clouds.
Here's what we do know:
* The Milky Way is estimated to be about 100,000 light-years across.
* One light-year is about 5.88 trillion miles, which is about 9.46 trillion kilometers.
So, you can calculate the diameter of the Milky Way in miles or kilometers using these numbers. However, expressing it in feet would be an incredibly large and impractical number.
