Tag Archives: atmosphere

THEMIS: Ice-rich clouds over Arsia Mons’ caldera

THEMIS Image of the Day, September 19, 2018. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading

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MARCI weather report, September 3-9, 2018

Slightly hazy conditions continued across many regions of Mars last week. Near the start and end of the week, a couple small dust lifting events occurred over the low-latitudes of Noachis Terra. Looking to the eastern hemisphere, a transient local-scale … Continue reading

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MARCI weather report, Aug 27-Sept 2, 2018

Dusty atmospheric conditions resulting from the planetary-encircling dust event continued to wane across much of Mars for the past week. Looking to the equatorial latitudes, a couple short-lived dust events were observed over North Central Noachis Terra. Further west, dust … Continue reading

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MARCI weather report, August 20-26, 2018

Afternoon skies became less dusty as dust continued to settle out of the atmosphere this past week. In the middle of the week, local dust storm activity returned to Noachis Terra. During that time, a dust storm pushed southward over … Continue reading

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MARCI weather report, August 13-19, 2018

The decay phase of the planet-encircling dust event continued this past week, as dust lofted by the event continued to settle out of the thin martian atmosphere. At southern high-latitudes, small dust storms kicked up along the receding seasonal south … Continue reading

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MAVEN: Challenges of resurrecting the martian atmosphere

Many people have suggested that future Mars colonists may want to thicken the Martian atmosphere and make it breathable for long-term habitation of the Red Planet. In this MAVEN outreach webinar from August 15, 2018, MAVEN Co-Investigator Dr. Robert Lillis … Continue reading

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MARCI weather report, August 6-12, 2018

Bright and dark regions of Mars continued to become more apparent through the planet-encircling dust haze as dust continued to slowly settle out of the atmosphere last week. Each sol, thick hazes still lingered above the martian lowlands including over … Continue reading

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MARCI weather report, July 30-August 5, 2018

The planetary-encircling dust event continued to decay across Mars last week. Looking to the southern highlands, short-lived local-scale dust storms were observed over Solis-Sinai and along the seasonal south polar ice cap edge, which has retreated to ~65° S. latitude. … Continue reading

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MAVEN: Loss of atmosphere drove climate change on Mars

MAVEN research shows that atmospheric loss to space has been the major process driving climate change on Mars. Research using MAVEN data indicates that Mars’ atmospheric loss over time has been at least 0.8 bar CO₂ or the equivalent of … Continue reading

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MARCI weather report, July 23-29, 2018

During the past week, dust continued to gradually settle out of the martian atmosphere as part of the long decay phase of the planet-encircling dust event. Regional surface albedo features, such as Noachis, Syrtis, Cimmeria, and Sirenum became more prominent. … Continue reading

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