September 13th, 2024

Cloud atlas of Mars reveals an atmosphere unlike our own

Researchers developed a cloud atlas of Mars using data from the Mars Express spacecraft, revealing unique atmospheric phenomena and cloud patterns that influence the planet's climate, distinct from Earth.

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Cloud atlas of Mars reveals an atmosphere unlike our own

Using data from the European Space Agency’s Mars Express spacecraft, researchers have developed a comprehensive cloud atlas of Mars, revealing a variety of atmospheric phenomena distinct from those on Earth. The Martian atmosphere, primarily composed of carbon dioxide, is thin and can produce unique cloud patterns when combined with dust and water vapor under cooler temperatures. This study, led by Daniela Tirsch at the German Aerospace Center, aims to enhance understanding of these cloud formations and their influence on Mars's climate. The findings indicate that elongated dust clouds, which are prevalent on Mars, do not have an equivalent on Earth, highlighting the planet's unique atmospheric characteristics.

- Researchers created a cloud atlas of Mars using images from the Mars Express spacecraft.

- Mars's atmosphere is primarily carbon dioxide and can form unique cloud patterns.

- The study aims to understand the impact of Martian clouds on the planet's climate.

- Elongated dust clouds on Mars are not found on Earth, showcasing Mars's atmospheric uniqueness.

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By @samschooler - 8 months
The fourth photo is Olympus Mons, not a volcano on Mars; it is the volcano on Mars. I'm sure a lot of you know this, however reminding myself of how big this peak is is always breathtaking. A hypothetical ascent in our future would be the single largest climbing feat human kind ever could undertake in our known solar system [0].

Mt. Everest is 8,848.86 m (29,032 ft) [1].

Mauna Kea (assuming you're climbing from the local bottom of the ocean is 9,330 m (30,610 ft) [2].

Olympus Mons' prominence is 21,900 m (71,850 feet 4.724 inches) [3].

Try climbing Everest, twice, where the entire mountain (and planet) is the "death zone" and your supplies have to be flown in from one planet over.

Edit: Also! For a sense of scale, the crater in the photo is 85 km (53 miles) in diameter [4]. About the distance from the Taco Bell in Half Moon Bay to the Taco Bell just east of Santa Cruz as the crow flies [5].

[0]: https://en.wikipedia.org/wiki/List_of_tallest_mountains_in_t...

[1]: https://web.archive.org/web/20201208113343/https://www.natio...

[2]: http://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=TU2314

[3]: https://tharsis.gsfc.nasa.gov/mola.summary.pdf

[4]: https://www.britannica.com/place/Olympus-Mons

[5]: https://www.gaiagps.com/map/?loc=8.6/-122.6459/37.2976&pubLi...

By @johncarlosbaez - 8 months
Strange title, since we've known for a long time that Mars has an atmosphere unlike our own.
By @notamy - 8 months