Which of the following are units scientists use when describing distances in space?
meters
kilometers
light years
astronomical units
miles
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Scientists use several units to describe distances in space, including:
1. Light years: The distance that light travels in one year, used for measuring vast distances between stars and galaxies.
2. Astronomical units (AU): The average distance from the Earth to the Sun, commonly used within our solar system.
3. Kilometers: While not as common for astronomical distances, kilometers can still be used for measuring distances on planets or between nearby celestial bodies.
4. Miles: Similar to kilometers, miles can be used but are less common in scientific contexts compared to the above units.
Meters may theoretically be used, but they are not practical for astronomical distances. Thus, the primary units are light years and astronomical units.
If you would like more in-depth explanations about any of these units, feel free to check the extended services page!