Ice Discovered Under Mars' Surface

Despite its flaming red appearance, Mars is an icy cold planet. But an Arctic blast being delivered by Winter Storm Decima is leaving some parts of the United States chillier than the Red Planet – at least in terms of high temperatures.

Mars’ Thursday high temperature was forecast to reach 17 degrees Fahrenheit, according to a tweet from an account dedicated to monitoring the planet’s weather.

(MORE: Deadly Winter Storm Decima Triggers Avalanches)

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In the U.S., temperatures in some cities failed to approach that mark on Friday, with Sioux Falls, South Dakota, only reaching a high of 16, Casper, Wyoming, topping out at 16 degrees and Billings, Montana, reporting a high of 6 degrees.

While high temperatures on Mars may be just a little warmer than spots on our home planet over these next few days, there’s no contest when it comes to the lows. The same day that the Red Planet saw a high of 17, the low was a bone-chilling minus 103 degrees, according to the tweet.

MORE ON WEATHER.COM: Winter Storm Decima

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