What unit is used to measure distance in space?

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Multiple Choice

What unit is used to measure distance in space?

Explanation:
Distances in space are incredibly large, so we use a unit that makes those numbers easy to grasp. A light-year is the distance light travels in one year, so it gives a practical way to describe how far away stars and galaxies are. It’s a distance, not a time, which helps avoid confusion. Kilometers and meters are fine for nearer scales like planets or spacecraft, but they produce extremely big numbers for distant objects, and miles has the same issue. That’s why light-years are the standard way to express vast cosmic distances.

Distances in space are incredibly large, so we use a unit that makes those numbers easy to grasp. A light-year is the distance light travels in one year, so it gives a practical way to describe how far away stars and galaxies are. It’s a distance, not a time, which helps avoid confusion. Kilometers and meters are fine for nearer scales like planets or spacecraft, but they produce extremely big numbers for distant objects, and miles has the same issue. That’s why light-years are the standard way to express vast cosmic distances.

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