Which planet in our solar system has the longest day, taking about 243 Earth days to complete one rotation?
Venus
The answer was Venus. Here's the why, the decoys, and the source trail.
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Venus rotates so slowly that a single day on Venus (one full rotation) takes about 243 Earth days — longer than its year, which is about 225 Earth days. It also rotates in the opposite direction of most planets.
A good trivia question makes the wrong answers feel close. Here is the clean read on the set.
- Mercury - a decoy; it may live near the same topic, but it does not answer this exact clue.
- Venus - correct answer.
- Jupiter - a decoy; it may live near the same topic, but it does not answer this exact clue.
- Neptune - a decoy; it may live near the same topic, but it does not answer this exact clue.
Venus is the one to remember. Venus rotates so slowly that a single day on Venus (one full rotation) takes about 243 Earth days — longer than its year, which is about 225 Earth days. Because Venus spins backward relative to its orbit, the Sun rises in the west and sets in the east on Venus.
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Sources: NASA