Tag Archives: High Resolution Imaging Science Experiment

HiRISE: Dunes in the shapes of Ts and Vs

Posted on December 3, 2018 by rburnham

Dunes in the shapes of Ts and Vs. They also look like funnel shapes. Beautiful Mars series. [More at links]

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HiRISE: Crater immediately east of Biblis Patera

Posted on November 30, 2018 by rburnham

A crater immediately to the east of Biblis Patera. Some questions include: (a) what is the “deposit” on the west side of the crater, seeming to cover the wall/floor interface? (b) what is the floor material; did lava come up … Continue reading →

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HiRISE: Active dunes in Wirtz Crater

Posted on November 29, 2018 by rburnham

These gorgeous dunes are likely active, with ripples on their upwind slopes and dark streaks on their downwind slopes forming and changing due to wind-driven sand motion. This motion will also keep the dune brink (the edge between the two … Continue reading →

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HiRISE: Spring frost on a cold world

Posted on November 28, 2018 by rburnham

Winter on Mars comes with a blanket of carbon dioxide snow. During the spring “thaw,” this snow evaporates into the atmosphere, lingering longest in the shallow depressions such as the troughs of polygon patterned ground. Enhanced color shows the carbon … Continue reading →

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HiRISE: Looking at martian salts and clays

Posted on November 27, 2018 by rburnham

This 3D perspective view is a composite of both HiRISE and data from CRISM, another instrument onboard MRO. This view covers a small patch of ancient Martian real estate in Terra Sirenum. CRISM collects spectral data that can be used … Continue reading →

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HiRISE: Branched ridges in NE Arabia Terra

Posted on November 26, 2018 by rburnham

Branched ridges in northeast Arabia Terra. Could these features be inverted stream channels and a depositional (alluvial) fan? Beautiful Mars series. [More at links]

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HiRISE: Dust devil in action

Posted on November 23, 2018 by rburnham

Dust devil tracks in the Diacria region. Our eye might deceive us, but that bright spot in the enhanced color image looks suspiciously like a dust devil in action. Hmmm…. Beautiful Mars series. [More at links]

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HiRISE: Pitted cones in Chryse Planitia

Posted on November 23, 2018 by rburnham

Pitted cones in Chryse Planitia. Beautiful Mars series. [More at links]

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HiRISE: Mysterious features on crater floor

Posted on November 21, 2018 by rburnham

Mysterious! These interesting-looking features are on the floor of crater near Amazonis Mensa. They might be wind-driven erosional features. Beautiful Mars series. [More at links]

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HiRISE: Impact crater near Tempe Terra

Posted on November 20, 2018 by rburnham

An impact crater near Tempe Terra. Despite this crater likely being extremely old and filled-in with material, we can still see its ejecta blanket. Beautiful Mars series. [More at links]

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