A light-year is the distance light travels in one year. Since light travels incredibly fast (approximately 299,792,458 meters per second), a light-year is a vast distance.

Here's the breakdown:

* One light-year is roughly 5.88 trillion miles (9.46 trillion kilometers).

To put this in perspective, the Earth's diameter is only about 8,000 miles. So, a light-year is about 735,000,000 times the diameter of Earth!

Therefore, 1 light-year from Earth would be a point in space that is 5.88 trillion miles away in any direction. It's important to note that "1 light-year from Earth" doesn't specify a particular location, but rather a sphere with Earth at its center and a radius of one light-year.