Traveling the distance from the Sun to Neptune, measured in light-years, equates to what fraction of the distance to the nearest star?
Answer
About 0.0005 light-years
The difference in scale between interplanetary and interstellar space is profound. The distance from the Sun to Neptune, which light crosses in about four hours, translates to a mere 0.0005 light-years when measured on the scale toward the nearest star. This comparison starkly illustrates how much greater interstellar separation is compared to the distances within our own Solar System, highlighting that the 'emptiness' around us is vast even across relatively short interplanetary spans.
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