Author Archives: rburnham

MARCI weather report, February 13-19, 2017

Mars continued to display local-scale storm activity for the past week. Repeated dust storms were observed over Amazonis and near the Phlegra Montes. The northern part of the Acidalia storm-track also experienced short-lived dust storms near Tempe and Chryse. Further … Continue reading

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HiRISE: Layered mantling deposits in the northern mid-latitudes

Ice-rich mantling deposits accumulate from the atmosphere in the Martian mid-latitudes in cycles during periods of high obliquity (axial tilt), as recently as several million years ago. These deposits accumulate over cycles in layers, and here in the southern mid-latitudes, … Continue reading

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Curiosity update: Re-attempt the drive

Sol 1617, February 22, 2017, update by USGS scientist Ken Herkenhoff: The drive planned for Sol 1616 halted early, apparently because the right rear wheel got stuck between two rocks.  The mobility team concluded that it is safe to continue, … Continue reading

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THEMIS: Pages from the south polar climate history book

THEMIS Image of the Day, February 22, 2017. Today’s VIS image shows part of the south polar cap. It is now summer in the region and the surface frosts are gone. The layers of ice comprising the cap are now … Continue reading

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HiRISE: Obstacles and wakes in lava

Amazonis Planitia is a broad plain on Mars, covered with ancient lava. This image shows an interesting feature of an old lava flow. When it was mostly liquid, the lava had a crust of cooled debris floating on the surface. … Continue reading

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HiRISE: Terminal lobes of a large debris flow in Melas Chasma

Terminal lobes of a large debris flow in Melas Chasma. Beautiful Mars series.

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THEMIS: Looking into sunrise shadows

THEMIS Image of the Day, February 21, 2017. Over the course of the Odyssey mission, the spacecraft has flown covering the surface at many different times of local day. Right now Odyssey is looking down along the day/night terminator, seeing … Continue reading

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HiRISE: New crater on a dusty slope

This image shows a new impact site originally detected by the Context Camera onboard MRO. The crater is on a dusty slope, which also has several dark slope streaks due to dust avalanches. A previous impact at another place on … Continue reading

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Curiosity: MAHLI puts in a night’s work

Sol 1615, February 20, 2017. At about 1:30 p.m., the Hazcam recorded the instrument arm on the rock in front of Curiosity. In the dead of night, 10 hours earlier, the MAHLI turned on its LED light and shot a … Continue reading

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THEMIS: Dust devil tracks in Aonia Terra

THEMIS Image of the Day, February 20, 2017. Today’s VIS image shows dust devil tracks on the plains of Aonia Terra. As the dust devil moves across the surface it scours the fine dust particles, revealing the darker rock surface … Continue reading

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