Tag Archives: atmosphere

How much atmosphere has Mars lost?

A key tracer used to estimate how much atmosphere Mars lost can change depending on the time of day and the surface temperature on the Red Planet, according to new observations by NASA-funded scientists. Previous measurements of this tracer – … Continue reading

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MARCI weather report, August 26-27, 2019

Weather patterns were fairly typical last week for this time of Mars year. In the north, local-scale dust storms were spotted along seasonal north polar cap edge. Diffuse water-ice clouds associated with the aphelion cloud-belt continued to be more dominant … Continue reading

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MARCI weather report, August 19-25, 2019

Afternoon weather conditions were again very seasonal this past week. Local dust storms were observed along the seasonal receding north polar cap edge and at southern low-to-mid latitudes. The developing aphelion cloud belt continued to be prominent at equatorial latitudes. … Continue reading

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MARCI weather report, August 12-18, 2019

Afternoon weather conditions were very seasonal this past week. Local dust storms were observed along the seasonal receding north polar cap edge (north of Acidalia) and at southern low-latitudes (Margaritifer and Solis) and mid-latitudes (from Aonia to Cimmeria). Condensate clouds … Continue reading

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MARCI weather report, August 5-11, 2019

During the past week on Mars, transient dust storms were observed along the edge of the south polar hood in Sirenum and Aonia. While in the northern hemisphere, storms developed along the seasonal cap edge, with one arcuate-shaped storm propagating … Continue reading

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Curiosity update: A change in the weather (observations)

Sols 2489-91, August 8, 2019, update by MSL scientist Claire Newman: Over the weekend, Curiosity successfully dropped off a portion of the Glen Etive drill sample. But for some reason, the sequence was interrupted, so no images of the portion … Continue reading

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MAVEN: Solar conjunction coming

The MAVEN operations and navigation teams are preparing for Mars solar conjunction, when the Sun is lined up almost directly between Earth and Mars: https://go.nasa.gov/2OOZQhy. This year, Mars solar conjunction will happen between Aug. 28 – Sept. 7. Due to … Continue reading

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MARCI weather report, July 15-21, 2019

For the past week on Mars, small sporadic dust storms continued along the south polar hood. Dust activity was also observed a bit further north over Solis Planum, central Cimmeria, and just south of eastern Valles Marineris. Looking to the … Continue reading

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2018 global dust storm according to Curiosity’s REMS instrument in Gale Crater

[Editor’s note: From a paper by Daniel Viúdez‐Moreiras and 14 co-authors recently published in the Journal of Geophysical Research.] Effects of the MY34/2018 Global Dust Storm as Measured by MSL REMS in Gale Crater • Atmospheric opacity over Gale Crater … Continue reading

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MARCI weather report, July 8-14, 2019

Dust-lifting occurred northwest of Argyre at the beginning of the week, giving rise to dusty conditions over eastern Valles Marineris for several afternoons. Looking eastward across the southern highlands, numerous small short-lived dust events were observed over Terra Cimmeria. The … Continue reading

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