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This simulated perspective oblique view shows Olympus Mons, the tallest volcano not only on Mars but in the entire solar system. The volcano measures some 600 km across.
During the winter and in complete darkness, the surface chills allowing gas in the atmosphere to deposit on the surface as great bit chunks of carbon dioxide ice. Then the poles are exposed to sunlight again the frozen carbon dioxide sublimes straight back into a gas. This is the first time water frost has been discovered in the vicinity of the planet's equator calling for a rethink of the planets climate dynamics. Until now, we thought it was quite unlikely for frost to form around the equator due to the levels of solar radiation and the thin atmosphere. The conditions mean the surface temperatures can reach reasonably high temperatures, too high for frosts to form even at the top of the volcanoes.
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Water frost detected on Mars volcanoes in ‘unexpected’ firstUsing cameras fitted on probes orbiting Mars, researchers have observed morning frost forming inside the calderas of the planet’s volcanoes for the first time.
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Water frost on Mars: On the top of immense volcanoes, a briefly icy landscapeThe formation of water frost is common on Earth, especially in winter when atmospheric water vapor condenses and freezes on the surface. On Mars, the atmosphere is about 100 times less dense than on Earth, but it too contains water vapor.
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Mars: ‘Impossible’ Discovery As Frost Found Near EquatorI'm an award-winning journalist writing about the night sky and eclipses.
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Water frost detected on Mars' volcanoes in 'significant' first discovery: StudyResearchers say the frost patches equate to '60 Olympic-size swimming pools.'
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'We thought it was impossible:' Water frost on Mars discovered near Red Planet's equatorRobert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
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60 Olympic swimming pool-sized water frost found on Mars’ tallest volcanoThe amount of frost near Mars' equator is approximately about at least 150,000 tons of water and is found during the cold seasons.
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