How big is a light-year?

The scale of the universe

How big is the universe

To reach Earth from the closest exoplanet: With lightspeed: 4 years. With the latest human technology: 78,000 years. If aliens really exist, they probably can't travel at this speed or we are on a primitive level compared to them.

The closest star to ours is 4 light years, so in other words we’re stuck here, we’re just to far away from everything. In between two of the three arms of our Milky Way galaxy!

The earliest suspected record of the northern lights is in a 30,000-year-old cave painting in F

5,878,625,373,183.61 miles to be precise.

How big is a light-year?

I am so so marvel

Now I know what a light year is😅

@GavHolmes