The planet that moves round the sun at the highest speed is ______.

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The planet that moves round the sun at the highest speed is ______. Answer: Mercury

Mercury is the closest planet to the Sun and moves the fastest in its orbit, traveling at an average speed of about 47.87 km/s (107,000 mph). Its proximity to the Sun results in a short orbital period—only 88 Earth days to complete one revolution.

Question context

This question is part of 🔬 General Science within the broader 🌐 Current Affairs & GK subject and appears in the SPSC – Sindh Public Service Commission preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.