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Every planet in the Solar System is closer than one light year to the Earth.

In fact, when you travel at the speed of light on January first departing from our own star (the sun) it is still January first when you pass Pluto...

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9y ago
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4mo ago

The closest planet to Earth is Venus, which can be between 38 million and 261 million kilometers away depending on where the planets are in their orbits. In light years, this distance is about 0.0000026 to 0.000018 light years.

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9y ago

The distance to the closest planet to Earth is better measured in light-minutes than in light-years. The planets are moving, so its continually changing, but on average both Venus and Mercury are about 8.3 light-minutes from Earth.

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9y ago

All the planets are closer than 1 light-year, in fact the furthest is only a few light-hours.

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Q: How many light years away is the closest planet to earth?
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