New ultraviolet photos of Mars offer stunning views of the planet's changing seasons.
Mars orbits closest to the sun when its southern hemisphere is tilted towards it, whereas the northern hemisphere is tilted towards the sun when it's further away. As a result,are much hotter during the southern summer than the northern summer. The boost in temperature causes more turbulence, stronger winds and larger dust storms in the southern hemisphere.
The first image, taken in July 2022, captures one of Mars' deepest craters, Argyre Basin, near the bottom left of the planet. The crater appears filled with atmospheric haze, while the deep canyons of Valles Marineris near the top left of the planet appear filled with clouds. The warmer temperatures of summer cause the southern polar ice caps to shrink, which, in turn, releases carbon dioxide and causes the atmosphere to be thicker. MAVEN, which launched in November 2013 to study the planet's atmospheric gasses, has also detected increased hydrogen loss from Mars at this time of year, which is likely the result of dust storms driving water vapor to very high altitudes.
Studying these systems will offer a better look into how the Red Planet has evolved over time."Understanding atmospheric loss gives scientists insight into the history of Mars' atmosphere and climate, liquid water, and
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