They measure them in light-years.
Yes.
Usually such distances are measured either in light-years, or in parsecs.
Stellar distances, like the distances of stars and galaxies from Earth
Distances are measured in metres.
meters, feet, and even miles are way too small to measure distances in space. astronomical units are mostly used to measure distances in our solar system. light years are used to measure the distances of things further away from our solar system.
There are MANY units used to measure distances both in Metric and in English types. We use Feet and Yards to measure distances in the US. The academic field often uses metric units like meters and kilometers to measure distances. For larger or massive distances there are the units of miles (English) and Kilomiters (Metric) and then in space we have the Astonomical Unit (Distance from earth to Sun) and the Light Year for the biggest distances. And there are the smaller measures of inches and millimeters.
The same as linear distances: kilometres, metres, centimetres, millimetres, etc.
You can use the kilometer to measure small distances, but it is inconvenient to do so. A kilometer is a unit of measurement for a large distance. It is more accurate and practical to measure small distances using smaller units like the meter or centimeter.
light years
the distance is measured in LIGHTYEARS.
They do not use units: they use the fact that stars are not galaxies. For example, you don't use units to measure the difference between children and countries.
Light year or astronomical units