Tag Archives: MRO

HiRISE: Dunes in low southern latitudes

Posted on April 10, 2019 by rburnham

Dunes in low southern latitudes. The objective of this observation is to examine a small field of dunes. HiRISE Picture of the Day archive. [More at links]

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HiRISE: Rocky layers on the floor of Fournier Crater

Posted on April 9, 2019 by rburnham

Rocky layers on the floor of Fournier Crater. A nice, classic bowl-shaped crater with bright bedrock exposures on one of its walls. This is located within Fournier Crater, which is 118 kilometers in diameter. HiRISE Picture of the Day archive. … Continue reading →

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HiRISE: Bouncing boulders

Posted on April 8, 2019 by rburnham

Most debris on crater walls slides straight downhill. In this HiRISE image we see examples of boulders that have bounced downhill, not necessarily vertically. A prominent example looks like a dotted line from the top of the crater wall where … Continue reading →

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HiRISE: A crater on the south polar layered deposits

Posted on April 5, 2019 by rburnham

This image is part of a campaign to image potential impact craters in the south polar layered deposits (ice cap). This feature looks like a strong candidate for an impact crater because it is very circular are still has a … Continue reading →

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HiRISE: Clay-rich terrain in the Eridania Basin

Posted on April 4, 2019 by rburnham

HiRISE reveals small-scale shapes that often correlate with mineral units and provides information about stratigraphy (i.e., what’s on top and relative ages). This image was acquired for co-analysis with a spectrometer instrument also on our spacecraft called CRISM (Compact Reconnaissance … Continue reading →

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HiRISE: The hills in Juventae Chasma

Posted on April 3, 2019 by rburnham

This image captures some of the geologic diversity of Mars. There are hills of ancient terrains on the floor of Juventae Chasma, surrounded by younger sediments, including dark sand sheets and dunes that are likely active today. The hills are … Continue reading →

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MARCI weather report, March 25-31, 2019

Posted on April 3, 2019 by rburnham

For the past week on Mars, transient dust storms and water ice clouds continued to develop along the seasonal north polar ice cap edge. Just a bit further south, a couple fleeting dust storms were spotted extending southward across Acidalia … Continue reading →

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HiRISE: Dramatic changes over the south polar cap

Posted on April 2, 2019 by rburnham

The south polar residual cap of carbon dioxide ice rapidly changes. This image was planned as an almost exact match to the illumination and viewing angles of a previous one we took in August 2009. The pits have all expanded … Continue reading →

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HiRISE: Frost-covered dunes

Posted on April 1, 2019 by rburnham

Frost-covered dunes. Sprinkled with hopes and dreams, no less. This is a relatively new monitoring site that seems to have heavy carbon-dioxide snowfall. HiRISE Picture of the Day archive [More at links]

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HiRISE: Grjota Valles

Posted on March 29, 2019 by rburnham

Grjotá Valles. Grjotá Valles is one of Mars’ four Amazonian-aged, fissure-headed, catastrophic flood channels. It originates at the northwestern-most Cerberus Fossa and stretches several hundred kilometers eastward and southward. HiRISE Picture of the Day archive [More at links]

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