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Which planet has the most dramatic temperature difference between day and night?
Quick Answer
Mercury has the biggest day-night temperature swing of any planet. Temperatures can soar to about 430 °C in sunlight and plunge to around -180 °C at night.
The Full Story
Mercury has almost no atmosphere to hold or redistribute heat, so the side facing the Sun becomes extremely hot while the night side becomes frigid. Surface temperatures can reach about 430 degrees Celsius in the daytime and fall to around minus 180 degrees Celsius at night. That huge range is one of the most extreme in the Solar System. The absence of a substantial atmosphere is the main reason for the difference.
Key Facts
1.Daytime up to about 430 °C
2.Nighttime around -180 °C
3.Very thin atmosphere
YouTube Angle
Suggested video title for this topic:
"A world that swings from oven-hot to ice-cold!"
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