Tag Archives: atmosphere

MARCI weather report, July 2-8, 2018

Dusty conditions continued around the red planet this past week, as the planet-encircling dust event was still ongoing. The colossal dust cloud was still prevalent between the south polar ice cap and the north polar hood. Solis-Sinai and on occasion, … Continue reading

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MARCI weather report, June 25-July 1, 2018

For the past week on Mars, the planet-encircling dust event persisted across all hemispheres. Though, active dust-lifting was not occurring everywhere across the planet, regional lifting centers in Solis-Sinai, Hellas, and Elysium continued to sustain a planet-encircling dust cloud of … Continue reading

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Mars dust storm may lead to new weather discoveries

Mars is experiencing an estimated 15.8-million–square-mile dust storm, roughly the size of North and South America. This storm may not be good news for the NASA solar-powered Opportunity rover, but one Penn State professor sees this as a chance to … Continue reading

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MARCI weather report, June 18-24, 2018

The planet-encircling dust event endured across Mars last week. As the week progressed, storm activity expanded over Solis-Sinai, Aonia, and Sirenum. Dusty conditions also continued from Isidis to Olympus and from Argyre to western Sirenum. Storm activity south of Hellas, … Continue reading

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MARCI weather report, June 11-17, 2018

The massive dust storm reported in the previous update, persisted over many regions of Mars last week. At the beginning of the week, a local-scale dust storm was spotted southwest of Gale Crater. Active lifting associated with the major storm … Continue reading

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MARCI weather report, June 4-10, 2018

A major regional-scale dust storm continued across Mars this past week. At the start of the week, the dust storm expanded along the northern hemisphere from eastern Tharsis to Elysium. Dust over Arabia was transported north of Syrtis along the … Continue reading

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Medusae Fossae formation is likely a deposit from explosive volcanism

[Editor’s note: From a paper by Lujendra Ojha and Kevin Lewis recently published in the Journal of Geophysical Research.] The Medusae Fossae Formation is one of the largest sedimentary deposits on Mars. Its origin is uncertain, though several processes including volcanic, … Continue reading

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MARCI weather report, May 28-June 3, 2018

The most prominent weather events last week were two large regional dust storms over the northern hemisphere of Mars. The large arcuate-shaped dust storm, reported the previous week, propagated eastward over the northern mid-latitudes of Utopia Planitia before abating. By … Continue reading

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MARCI weather report, May 21-27, 2018

Shortly after the arrival of the Northern Autumnal Equinox last week, two large arcuate-shaped dust storm fronts swept eastward from Acidalia to Deuteronilus and further eastward towards the plains of Utopia. Looking to the southern highlands, dust lifting activity was … Continue reading

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MARCI weather report, May 14-20, 2018

Last week on Mars, weather patterns were fairly typical for this time of martian year. A large dust storm was observed over Cimmeria and Sirenum at the beginning of the week. In the following sols, the dust lifting quickly abated … Continue reading

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