QUIZ: Most Can’t Pass This Basic Science Test

A light-year is a measurement of what?

Retry Correct Incorrect A light-year is a unit of astronomical distance which is equivalent to the distance that light travels in one year. That distance is 9.4607 × 1012 kilometer, or almost six trillion miles.

A light-year is a measurement of what?

  • Brightness
  • Sound
  • Time
  • Distance
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