10-26-2022, 07:19 PM
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Senior Member
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Join Date: Mar 2017
Location: ABQ, New Mexico
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Even though Mercury is the closest planet to the sun, its surface can still be extremely cold, thanks to its lack of a heat-trapping atmosphere. The temperature during the day can reach a scorching 800 degrees Fahrenheit (430 degrees Celsius), but at night, temperatures can plummet as low as minus 290 F (minus 180 C), according to NASA. That fluctuation equals a temperature swing of about 1,100 F (600 C), the largest of any planet in the solar system
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