* Our Sun: Light from the Sun takes about 8 minutes and 20 seconds to reach Earth.
* Nearby Stars: The closest star to our solar system, Proxima Centauri, is about 4.24 light-years away. This means it takes light from Proxima Centauri 4.24 years to reach us.
* Distant Stars: Light from stars in other galaxies can take millions or even billions of years to reach us.
What is a light-year?
A light-year is the distance light travels in one year. Since light travels at an incredibly fast speed (approximately 299,792,458 meters per second), a light-year represents a vast distance.
