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NASA's persistent probe has revealed the secret of the dust's persistence in the Martian atmosphere

NASA's persistent rover has found that the large amount of fine dust that makes Mars a reddish pink sky is caused by demon furnaces, dust storms and wind gusts. Occasionally but powerfully thrown into the atmosphere.

"Claire Newman," lead author of a new study published May 25 in the journal Science Advances, said: "The rise of hurricane dust that Perseverance has identified at the crater is the first definitive event we have seen of dust on Mars." It contains iron oxide, and regional and global dust storms can carry large amounts of this dust to the Martian atmosphere, creating permanent dust particles that scatter longer (redder) wavelengths of light, which is why the sky is so colored.

But while dust storms are usually seasonal and mostly With the summer of the planet's southern hemisphere, Mars still has a dusty sky, even beyond the season of heavy storms. This compatibility means that there must be alternative and more sustainable sources for the scattering of dust in the atmosphere.

Now, for the first time, the probe has persistently observed that dust is caused by the numerous events of demon furnaces and less common hurricanes. It is transferred to the atmosphere. During the 216 days that Mars has been on the planet, the Mars Environment Dynamics Analyzer or MEDA toolkit has detected an average of one demon furnace per day.

BingMag.com <b>NASA's</b> <b>persistent</b> <b>probe</b> has <b>revealed</b> the <b>secret</b> of the <b>dust's</b> <b>persistence</b> in the <b>Martian</b> atmosphere

Selfie persistent astronaut with genius Martian helicopter
Credit NASA/JPL-Caltech

MEDA radiation and dust sensors are able to detect dust clouds caused by demon furnaces and hurricanes by detecting how sunlight is dispersed by dust. Other MEDA sensors also measure air pressure, temperature and wind speed. "This is really the first time we've sent these sensors to Mars that are able to track dust and when and where it rises locally," Newman said. To lift larger amounts of dust. The largest demon furnaces identified by the Meda tool at the perseverance landing site at the mouth of the tide were about 270 meters wide, but a special wind event covered an area 10 times larger.

"Ricardo Huesu "Such winds show sharp changes and turbulence, which corresponds to the passage of a large convective cell," said Ricardo Hueso, a physicist at the University of Del Pais, Vasco, Spain, and one of the authors of the paper. The edge of the convection cells rises and the strongest winds are at the front edge, where it lifts the dust and sends it to the atmosphere, which absorbs sunlight and warms the atmosphere.

Warming the air, in turn, expands atmosphere and its density decreases. This effect could potentially have consequences for any spacecraft flying in the atmosphere, which could be a probe approaching the surface or landing, or even the "genius" of a small, persistent helicopter flying. The short identification is to help the astronaut.

BingMag.com <b>NASA's</b> <b>persistent</b> <b>probe</b> has <b>revealed</b> the <b>secret</b> of the <b>dust's</b> <b>persistence</b> in the <b>Martian</b> atmosphere

first Credit: NASA/JPL-Caltech

Newman added: "The biggest concern about genius is the change in the density of the air and the density of the atmosphere on Mars over the course of a year. "It changes a lot. This helicopter has different settings for different times of the year." On the scale of storms that last for months, they engulf the entire planet in dust. But these storms alone are not enough to permanently store large amounts of fine dust in the Martian atmosphere. " "And they are short-lived, while demon ovens and surface hurricanes make dust more stable in the atmosphere."

NASA's InSight lander, which landed on the Elysium Planitia near the equator of Mars, has seen few cases of dust-lifting events. At the first glance, the Elysium Hamoon and the tidal crater are relatively similar landings. One difference is that the tidal crater is near one of the Great Storm routes, Newman noted. We knew In terms of dust, the results will be slightly different. "The crater is very prone to dust rising, and trying to understand the balance between the various dust-raising events and why the ripple is so much larger than the site landing is a really interesting puzzle."

Cover Photo: Design A combination of red Mars atmosphere
Credit: Calvin J. Hamilton


Source: Space

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