Here's why:
* Milky Way's Size: The Milky Way is a vast spiral galaxy with a diameter estimated to be around 100,000 light-years.
* Speed of Light: Light travels at a phenomenal speed of approximately 299,792,458 meters per second (or about 186,282 miles per second).
* Distance and Time: Since light travels at a constant speed, the time it takes to cross the Milky Way is simply the galaxy's diameter divided by the speed of light.
Keep in mind that the Milky Way's exact size is still being debated, and the actual time it takes for light to cross it could vary slightly.
